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Finding the Third Proportional to 81,644 and 124,884

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Solution

The third proportional to 81,644 and 124,884 is: 191,024.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,644 : 124,884 = 124,884 : x
  2. Step 2: Convert to fraction form
    81,644/124,884 = 124,884/x
  3. Step 3: Cross multiply
    81,644x = 124,884 × 124,884
  4. Step 4: Simplify right side
    81,644x = 15,596,013,456
  5. Step 5: Solve for x
    x = 15,596,013,456/81,644
  6. Step 6: Final answer
    x = 191,024.61

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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.