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Finding the Third Proportional to 91,872 and 124,683

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Solution

The third proportional to 91,872 and 124,683 is: 169,212.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,872 : 124,683 = 124,683 : x
  2. Step 2: Convert to fraction form
    91,872/124,683 = 124,683/x
  3. Step 3: Cross multiply
    91,872x = 124,683 × 124,683
  4. Step 4: Simplify right side
    91,872x = 15,545,850,489
  5. Step 5: Solve for x
    x = 15,545,850,489/91,872
  6. Step 6: Final answer
    x = 169,212.06

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.