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Finding the Third Proportional to 102,272 and 156,981

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Solution

The third proportional to 102,272 and 156,981 is: 240,955.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,272 : 156,981 = 156,981 : x
  2. Step 2: Convert to fraction form
    102,272/156,981 = 156,981/x
  3. Step 3: Cross multiply
    102,272x = 156,981 × 156,981
  4. Step 4: Simplify right side
    102,272x = 24,643,034,361
  5. Step 5: Solve for x
    x = 24,643,034,361/102,272
  6. Step 6: Final answer
    x = 240,955.83

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.