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Finding the Third Proportional to 80,781 and 134,166

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Solution

The third proportional to 80,781 and 134,166 is: 222,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,781 : 134,166 = 134,166 : x
  2. Step 2: Convert to fraction form
    80,781/134,166 = 134,166/x
  3. Step 3: Cross multiply
    80,781x = 134,166 × 134,166
  4. Step 4: Simplify right side
    80,781x = 18,000,515,556
  5. Step 5: Solve for x
    x = 18,000,515,556/80,781
  6. Step 6: Final answer
    x = 222,831.06

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.