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Finding the Third Proportional to 100,934 and 156,731

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Solution

The third proportional to 100,934 and 156,731 is: 243,372.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,934 : 156,731 = 156,731 : x
  2. Step 2: Convert to fraction form
    100,934/156,731 = 156,731/x
  3. Step 3: Cross multiply
    100,934x = 156,731 × 156,731
  4. Step 4: Simplify right side
    100,934x = 24,564,606,361
  5. Step 5: Solve for x
    x = 24,564,606,361/100,934
  6. Step 6: Final answer
    x = 243,372.96

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.