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Finding the Third Proportional to 87,542 and 131,277

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Solution

The third proportional to 87,542 and 131,277 is: 196,861.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,542 : 131,277 = 131,277 : x
  2. Step 2: Convert to fraction form
    87,542/131,277 = 131,277/x
  3. Step 3: Cross multiply
    87,542x = 131,277 × 131,277
  4. Step 4: Simplify right side
    87,542x = 17,233,650,729
  5. Step 5: Solve for x
    x = 17,233,650,729/87,542
  6. Step 6: Final answer
    x = 196,861.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.