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Finding the Third Proportional to 102,221 and 156,625

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Solution

The third proportional to 102,221 and 156,625 is: 239,983.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,221 : 156,625 = 156,625 : x
  2. Step 2: Convert to fraction form
    102,221/156,625 = 156,625/x
  3. Step 3: Cross multiply
    102,221x = 156,625 × 156,625
  4. Step 4: Simplify right side
    102,221x = 24,531,390,625
  5. Step 5: Solve for x
    x = 24,531,390,625/102,221
  6. Step 6: Final answer
    x = 239,983.86

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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.