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Finding the Third Proportional to 87,770 and 125,424

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Solution

The third proportional to 87,770 and 125,424 is: 179,231.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,770 : 125,424 = 125,424 : x
  2. Step 2: Convert to fraction form
    87,770/125,424 = 125,424/x
  3. Step 3: Cross multiply
    87,770x = 125,424 × 125,424
  4. Step 4: Simplify right side
    87,770x = 15,731,179,776
  5. Step 5: Solve for x
    x = 15,731,179,776/87,770
  6. Step 6: Final answer
    x = 179,231.85

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.