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Finding the Third Proportional to 83,080 and 125,611

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Solution

The third proportional to 83,080 and 125,611 is: 189,914.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,080 : 125,611 = 125,611 : x
  2. Step 2: Convert to fraction form
    83,080/125,611 = 125,611/x
  3. Step 3: Cross multiply
    83,080x = 125,611 × 125,611
  4. Step 4: Simplify right side
    83,080x = 15,778,123,321
  5. Step 5: Solve for x
    x = 15,778,123,321/83,080
  6. Step 6: Final answer
    x = 189,914.82

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.