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Finding the Fourth Proportional to 375,087.30, 517,082.40 and 267,470.70

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Solution

The fourth proportional to 375,087.30, 517,082.40 and 267,470.70 is: 368,725.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,087.30 : 517,082.40 = 267,470.70 : x
  2. Step 2: Convert to fraction form
    375,087.30/517,082.40 = 267,470.70/x
  3. Step 3: Cross multiply
    375,087.30x = 517,082.40 × 267,470.70
  4. Step 4: Simplify right side
    375,087.30x = 138,304,391,485.68
  5. Step 5: Solve for x
    x = 138,304,391,485.68/375,087.30
  6. Step 6: Final answer
    x = 368,725.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.