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Finding the Third Proportional to 87,439.50 and 187,616.25

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Solution

The third proportional to 87,439.50 and 187,616.25 is: 402,562.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,439.50 : 187,616.25 = 187,616.25 : x
  2. Step 2: Convert to fraction form
    87,439.50/187,616.25 = 187,616.25/x
  3. Step 3: Cross multiply
    87,439.50x = 187,616.25 × 187,616.25
  4. Step 4: Simplify right side
    87,439.50x = 35,199,857,264.06
  5. Step 5: Solve for x
    x = 35,199,857,264.06/87,439.50
  6. Step 6: Final answer
    x = 402,562.43

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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.