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Finding the Third Proportional to 171,720.75 and 252,439.13

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Solution

The third proportional to 171,720.75 and 252,439.13 is: 371,099.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,720.75 : 252,439.13 = 252,439.13 : x
  2. Step 2: Convert to fraction form
    171,720.75/252,439.13 = 252,439.13/x
  3. Step 3: Cross multiply
    171,720.75x = 252,439.13 × 252,439.13
  4. Step 4: Simplify right side
    171,720.75x = 63,725,511,830.77
  5. Step 5: Solve for x
    x = 63,725,511,830.77/171,720.75
  6. Step 6: Final answer
    x = 371,099.66

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.