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Finding the Third Proportional to 87,984 and 141,660

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Solution

The third proportional to 87,984 and 141,660 is: 228,081.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,984 : 141,660 = 141,660 : x
  2. Step 2: Convert to fraction form
    87,984/141,660 = 141,660/x
  3. Step 3: Cross multiply
    87,984x = 141,660 × 141,660
  4. Step 4: Simplify right side
    87,984x = 20,067,555,600
  5. Step 5: Solve for x
    x = 20,067,555,600/87,984
  6. Step 6: Final answer
    x = 228,081.87

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.