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Finding the Third Proportional to 87,432 and 187,602

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Solution

The third proportional to 87,432 and 187,602 is: 402,535.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,432 : 187,602 = 187,602 : x
  2. Step 2: Convert to fraction form
    87,432/187,602 = 187,602/x
  3. Step 3: Cross multiply
    87,432x = 187,602 × 187,602
  4. Step 4: Simplify right side
    87,432x = 35,194,510,404
  5. Step 5: Solve for x
    x = 35,194,510,404/87,432
  6. Step 6: Final answer
    x = 402,535.80

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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.