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Finding the Third Proportional to 87,464 and 191,740

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Solution

The third proportional to 87,464 and 191,740 is: 420,335.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,464 : 191,740 = 191,740 : x
  2. Step 2: Convert to fraction form
    87,464/191,740 = 191,740/x
  3. Step 3: Cross multiply
    87,464x = 191,740 × 191,740
  4. Step 4: Simplify right side
    87,464x = 36,764,227,600
  5. Step 5: Solve for x
    x = 36,764,227,600/87,464
  6. Step 6: Final answer
    x = 420,335.54

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.