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Finding the Third Proportional to 80,129.25 and 124,569

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Solution

The third proportional to 80,129.25 and 124,569 is: 193,655.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,129.25 : 124,569 = 124,569 : x
  2. Step 2: Convert to fraction form
    80,129.25/124,569 = 124,569/x
  3. Step 3: Cross multiply
    80,129.25x = 124,569 × 124,569
  4. Step 4: Simplify right side
    80,129.25x = 15,517,435,761
  5. Step 5: Solve for x
    x = 15,517,435,761/80,129.25
  6. Step 6: Final answer
    x = 193,655.07

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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.