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Finding the Third Proportional to 54,517.50 and 117,387

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Solution

The third proportional to 54,517.50 and 117,387 is: 252,757.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,517.50 : 117,387 = 117,387 : x
  2. Step 2: Convert to fraction form
    54,517.50/117,387 = 117,387/x
  3. Step 3: Cross multiply
    54,517.50x = 117,387 × 117,387
  4. Step 4: Simplify right side
    54,517.50x = 13,779,707,769
  5. Step 5: Solve for x
    x = 13,779,707,769/54,517.50
  6. Step 6: Final answer
    x = 252,757.51

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.