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Finding the Third Proportional to 172,405.50 and 267,576.75

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Solution

The third proportional to 172,405.50 and 267,576.75 is: 415,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,405.50 : 267,576.75 = 267,576.75 : x
  2. Step 2: Convert to fraction form
    172,405.50/267,576.75 = 267,576.75/x
  3. Step 3: Cross multiply
    172,405.50x = 267,576.75 × 267,576.75
  4. Step 4: Simplify right side
    172,405.50x = 71,597,317,140.56
  5. Step 5: Solve for x
    x = 71,597,317,140.56/172,405.50
  6. Step 6: Final answer
    x = 415,284.41

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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.