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Finding the Third Proportional to 71,229 and 110,732

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Solution

The third proportional to 71,229 and 110,732 is: 172,143.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,229 : 110,732 = 110,732 : x
  2. Step 2: Convert to fraction form
    71,229/110,732 = 110,732/x
  3. Step 3: Cross multiply
    71,229x = 110,732 × 110,732
  4. Step 4: Simplify right side
    71,229x = 12,261,575,824
  5. Step 5: Solve for x
    x = 12,261,575,824/71,229
  6. Step 6: Final answer
    x = 172,143.03

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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.