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Finding the Third Proportional to 87,708 and 124,110

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Solution

The third proportional to 87,708 and 124,110 is: 175,620.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,708 : 124,110 = 124,110 : x
  2. Step 2: Convert to fraction form
    87,708/124,110 = 124,110/x
  3. Step 3: Cross multiply
    87,708x = 124,110 × 124,110
  4. Step 4: Simplify right side
    87,708x = 15,403,292,100
  5. Step 5: Solve for x
    x = 15,403,292,100/87,708
  6. Step 6: Final answer
    x = 175,620.15

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.