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Finding the Third Proportional to 71,372 and 110,874

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Solution

The third proportional to 71,372 and 110,874 is: 172,239.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,372 : 110,874 = 110,874 : x
  2. Step 2: Convert to fraction form
    71,372/110,874 = 110,874/x
  3. Step 3: Cross multiply
    71,372x = 110,874 × 110,874
  4. Step 4: Simplify right side
    71,372x = 12,293,043,876
  5. Step 5: Solve for x
    x = 12,293,043,876/71,372
  6. Step 6: Final answer
    x = 172,239.03

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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.