Finding the Fourth Proportional to 178,413,901.95, 267,633,751.81 and 74,678,777.81
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Solution
The fourth proportional to 178,413,901.95, 267,633,751.81 and 74,678,777.81 is: 112,023,565.80
Step by Step Solution
- Step 1: Write the proportion equation
178,413,901.95 : 267,633,751.81 = 74,678,777.81 : x - Step 2: Convert to fraction form
178,413,901.95/267,633,751.81 = 74,678,777.81/x - Step 3: Cross multiply
178,413,901.95x = 267,633,751.81 × 74,678,777.81 - Step 4: Simplify right side
178,413,901.95x = 19,986,561,485,019,896 - Step 5: Solve for x
x = 19,986,561,485,019,896/178,413,901.95 - Step 6: Final answer
x = 112,023,565.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.