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Finding the Third Proportional to 83,072 and 125,472

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Solution

The third proportional to 83,072 and 125,472 is: 189,512.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,072 : 125,472 = 125,472 : x
  2. Step 2: Convert to fraction form
    83,072/125,472 = 125,472/x
  3. Step 3: Cross multiply
    83,072x = 125,472 × 125,472
  4. Step 4: Simplify right side
    83,072x = 15,743,222,784
  5. Step 5: Solve for x
    x = 15,743,222,784/83,072
  6. Step 6: Final answer
    x = 189,512.99

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.