Finding the Fourth Proportional to 76,124,593.68, 105,053,505.84 and 43,084,840.56
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Solution
The fourth proportional to 76,124,593.68, 105,053,505.84 and 43,084,840.56 is: 59,457,966.61
Step by Step Solution
- Step 1: Write the proportion equation
76,124,593.68 : 105,053,505.84 = 43,084,840.56 : x - Step 2: Convert to fraction form
76,124,593.68/105,053,505.84 = 43,084,840.56/x - Step 3: Cross multiply
76,124,593.68x = 105,053,505.84 × 43,084,840.56 - Step 4: Simplify right side
76,124,593.68x = 4,526,213,549,385,429 - Step 5: Solve for x
x = 4,526,213,549,385,429/76,124,593.68 - Step 6: Final answer
x = 59,457,966.61
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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.