Finding the Fourth Proportional to 103,389,975.84, 142,699,338.78 and 61,598,523
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Solution
The fourth proportional to 103,389,975.84, 142,699,338.78 and 61,598,523 is: 85,018,575.84
Step by Step Solution
- Step 1: Write the proportion equation
103,389,975.84 : 142,699,338.78 = 61,598,523 : x - Step 2: Convert to fraction form
103,389,975.84/142,699,338.78 = 61,598,523/x - Step 3: Cross multiply
103,389,975.84x = 142,699,338.78 × 61,598,523 - Step 4: Simplify right side
103,389,975.84x = 8,790,068,501,924,622 - Step 5: Solve for x
x = 8,790,068,501,924,622/103,389,975.84 - Step 6: Final answer
x = 85,018,575.84
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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.