Final answer:
The income inequality ratio in Alpha is 3 and the income inequality ratio in Omega is 6. The top two residents in Alpha would need to earn $250,000 each in order to have the same income inequality ratio as Omega. The new income inequality ratio in Alpha can be calculated using the updated income distribution.
Step-by-step explanation:
Part 1. The income inequality ratio in Alpha can be calculated by dividing the income of the top 20% of residents (2 residents) by the income of the bottom 20% of residents (2 residents). In this case, the income inequality ratio in Alpha is ($60,000 + $60,000) / ($20,000 + $20,000) = $120,000 / $40,000 = 3. The income inequality ratio in Omega can be calculated in the same way, which is ($300,000 + $300,000) / ($50,000 + $50,000) = $600,000 / $100,000 = 6.
Part 2. To find out how much the top two residents in Alpha would need to earn in order to have the same income inequality ratio as Omega, we can set up a proportion: ($90,000 + $90,000) / ($30,000 + $30,000) = ($250,000 + $250,000) / ($50,000 + $50,000). By cross-multiplying and solving for the unknown income, we get: 2 * unknown income = 2 * $250,000, so the top two residents in Alpha would need to earn $250,000 each.
Part 3. The new income inequality ratio in Alpha can be calculated by using the same method as in Part 1 with the updated income distribution. By counting the income of the top 20% of residents (3 residents) and the income of the bottom 20% of residents (3 residents), we can calculate the new income inequality ratio.