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Finding the Third Proportional to 100,962 and 156,311

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Solution

The third proportional to 100,962 and 156,311 is: 242,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,962 : 156,311 = 156,311 : x
  2. Step 2: Convert to fraction form
    100,962/156,311 = 156,311/x
  3. Step 3: Cross multiply
    100,962x = 156,311 × 156,311
  4. Step 4: Simplify right side
    100,962x = 24,433,128,721
  5. Step 5: Solve for x
    x = 24,433,128,721/100,962
  6. Step 6: Final answer
    x = 242,003.22

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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.