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Finding the Fourth Proportional to 267,338.31, 401,007.37 and 67,659.72

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Solution

The fourth proportional to 267,338.31, 401,007.37 and 67,659.72 is: 101,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,338.31 : 401,007.37 = 67,659.72 : x
  2. Step 2: Convert to fraction form
    267,338.31/401,007.37 = 67,659.72/x
  3. Step 3: Cross multiply
    267,338.31x = 401,007.37 × 67,659.72
  4. Step 4: Simplify right side
    267,338.31x = 27,132,046,372.14
  5. Step 5: Solve for x
    x = 27,132,046,372.14/267,338.31
  6. Step 6: Final answer
    x = 101,489.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.