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Finding the Third Proportional to 172,910,380.50 and 267,445,422

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Solution

The third proportional to 172,910,380.50 and 267,445,422 is: 413,665,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,910,380.50 : 267,445,422 = 267,445,422 : x
  2. Step 2: Convert to fraction form
    172,910,380.50/267,445,422 = 267,445,422/x
  3. Step 3: Cross multiply
    172,910,380.50x = 267,445,422 × 267,445,422
  4. Step 4: Simplify right side
    172,910,380.50x = 71,527,053,748,758,080
  5. Step 5: Solve for x
    x = 71,527,053,748,758,080/172,910,380.50
  6. Step 6: Final answer
    x = 413,665,469.60

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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.