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Finding the Third Proportional to 43,981 and 103,720

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Solution

The third proportional to 43,981 and 103,720 is: 244,601.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,981 : 103,720 = 103,720 : x
  2. Step 2: Convert to fraction form
    43,981/103,720 = 103,720/x
  3. Step 3: Cross multiply
    43,981x = 103,720 × 103,720
  4. Step 4: Simplify right side
    43,981x = 10,757,838,400
  5. Step 5: Solve for x
    x = 10,757,838,400/43,981
  6. Step 6: Final answer
    x = 244,601.95

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.