A family made three trips to the grocery store in one month.
* On the first trip, they spent $100 on groceries.
* On the second trip, they spent 20% less than they did on the first trip.
* On the third day, they spent
![(3)/(4)](https://img.qammunity.org/2020/formulas/mathematics/college/e902xdvhskq5go8rzqwzc0u5ermj5vc0m5.png)
as much as they did on the second trip.
What was the total amount of money the family spent on groceries for the month?