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Finding the Third Proportional to 57,789 and 124,542

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Solution

The third proportional to 57,789 and 124,542 is: 268,402.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,789 : 124,542 = 124,542 : x
  2. Step 2: Convert to fraction form
    57,789/124,542 = 124,542/x
  3. Step 3: Cross multiply
    57,789x = 124,542 × 124,542
  4. Step 4: Simplify right side
    57,789x = 15,510,709,764
  5. Step 5: Solve for x
    x = 15,510,709,764/57,789
  6. Step 6: Final answer
    x = 268,402.46

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.