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Finding the Third Proportional to 87,624 and 188,376

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Solution

The third proportional to 87,624 and 188,376 is: 404,974.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,624 : 188,376 = 188,376 : x
  2. Step 2: Convert to fraction form
    87,624/188,376 = 188,376/x
  3. Step 3: Cross multiply
    87,624x = 188,376 × 188,376
  4. Step 4: Simplify right side
    87,624x = 35,485,517,376
  5. Step 5: Solve for x
    x = 35,485,517,376/87,624
  6. Step 6: Final answer
    x = 404,974.86

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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.