Finding the Fourth Proportional to 290,145,757.32, 435,276,073.62 and 82,885,957.56
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Solution
The fourth proportional to 290,145,757.32, 435,276,073.62 and 82,885,957.56 is: 124,345,344.55
Step by Step Solution
- Step 1: Write the proportion equation
290,145,757.32 : 435,276,073.62 = 82,885,957.56 : x - Step 2: Convert to fraction form
290,145,757.32/435,276,073.62 = 82,885,957.56/x - Step 3: Cross multiply
290,145,757.32x = 435,276,073.62 × 82,885,957.56 - Step 4: Simplify right side
290,145,757.32x = 36,078,274,164,950,760 - Step 5: Solve for x
x = 36,078,274,164,950,760/290,145,757.32 - Step 6: Final answer
x = 124,345,344.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.