Finding the Fourth Proportional to 76,577,869.68, 105,716,483.82 and 59,135,057.52
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Solution
The fourth proportional to 76,577,869.68, 105,716,483.82 and 59,135,057.52 is: 81,636,514.28
Step by Step Solution
- Step 1: Write the proportion equation
76,577,869.68 : 105,716,483.82 = 59,135,057.52 : x - Step 2: Convert to fraction form
76,577,869.68/105,716,483.82 = 59,135,057.52/x - Step 3: Cross multiply
76,577,869.68x = 105,716,483.82 × 59,135,057.52 - Step 4: Simplify right side
76,577,869.68x = 6,251,550,351,507,849 - Step 5: Solve for x
x = 6,251,550,351,507,849/76,577,869.68 - Step 6: Final answer
x = 81,636,514.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.