A Mercedes-Benz 190 cost $24,000 in 1981, when the CPI was 90.9. The average CPI for 2002 was 179.9. How many 2002 dollars must you earn to have the same buying power as $24,000 had in 1981? {"id":"2","aid":null,"code":"$$\\frac{\\$\\,\\text{at}\\;\\text{time}\\;\\text{B}}{\\$\\,\\text{at}\\;\\text{time}\\;\\text{A}}\\,=\\,\\frac{\\text{CPI}\\;\\text{at}\\;\\text{time}\\;\\text{B}}{\\text{CPI}\\;\\text{at}\\;\\text{time}\\;\\text{A}}$$","backgroundColor":"#FFFFFF","font":{"size":12,"color":"#000000","family":"Arial"},"type":"$$","ts":1694564261746,"cs":"xLdOEX9+9+8Wc80R/eqAPQ==","size":{"width":249.59999999999994,"height":41.199999999999996}} Cost in 2002 =