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Finding the Third Proportional to 87,490.13 and 131,569.88

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Solution

The third proportional to 87,490.13 and 131,569.88 is: 197,858.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,490.13 : 131,569.88 = 131,569.88 : x
  2. Step 2: Convert to fraction form
    87,490.13/131,569.88 = 131,569.88/x
  3. Step 3: Cross multiply
    87,490.13x = 131,569.88 × 131,569.88
  4. Step 4: Simplify right side
    87,490.13x = 17,310,632,007.52
  5. Step 5: Solve for x
    x = 17,310,632,007.52/87,490.13
  6. Step 6: Final answer
    x = 197,858.12

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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.