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Finding the Third Proportional to 125,656 and 268,691

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Solution

The third proportional to 125,656 and 268,691 is: 574,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,656 : 268,691 = 268,691 : x
  2. Step 2: Convert to fraction form
    125,656/268,691 = 268,691/x
  3. Step 3: Cross multiply
    125,656x = 268,691 × 268,691
  4. Step 4: Simplify right side
    125,656x = 72,194,853,481
  5. Step 5: Solve for x
    x = 72,194,853,481/125,656
  6. Step 6: Final answer
    x = 574,543.62

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.