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Finding the Third Proportional to 71,663 and 100,230

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Solution

The third proportional to 71,663 and 100,230 is: 140,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,663 : 100,230 = 100,230 : x
  2. Step 2: Convert to fraction form
    71,663/100,230 = 100,230/x
  3. Step 3: Cross multiply
    71,663x = 100,230 × 100,230
  4. Step 4: Simplify right side
    71,663x = 10,046,052,900
  5. Step 5: Solve for x
    x = 10,046,052,900/71,663
  6. Step 6: Final answer
    x = 140,184.65

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.