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Finding the Third Proportional to 57,432 and 124,089

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Solution

The third proportional to 57,432 and 124,089 is: 268,109.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,432 : 124,089 = 124,089 : x
  2. Step 2: Convert to fraction form
    57,432/124,089 = 124,089/x
  3. Step 3: Cross multiply
    57,432x = 124,089 × 124,089
  4. Step 4: Simplify right side
    57,432x = 15,398,079,921
  5. Step 5: Solve for x
    x = 15,398,079,921/57,432
  6. Step 6: Final answer
    x = 268,109.76

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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.