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Finding the Third Proportional to 81,916 and 125,464

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Solution

The third proportional to 81,916 and 125,464 is: 192,162.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,916 : 125,464 = 125,464 : x
  2. Step 2: Convert to fraction form
    81,916/125,464 = 125,464/x
  3. Step 3: Cross multiply
    81,916x = 125,464 × 125,464
  4. Step 4: Simplify right side
    81,916x = 15,741,215,296
  5. Step 5: Solve for x
    x = 15,741,215,296/81,916
  6. Step 6: Final answer
    x = 192,162.89

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.