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Finding the Fourth Proportional to 267,542.92, 401,353.26 and 142,815.88

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Solution

The fourth proportional to 267,542.92, 401,353.26 and 142,815.88 is: 214,244.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,542.92 : 401,353.26 = 142,815.88 : x
  2. Step 2: Convert to fraction form
    267,542.92/401,353.26 = 142,815.88/x
  3. Step 3: Cross multiply
    267,542.92x = 401,353.26 × 142,815.88
  4. Step 4: Simplify right side
    267,542.92x = 57,319,619,017.77
  5. Step 5: Solve for x
    x = 57,319,619,017.77/267,542.92
  6. Step 6: Final answer
    x = 214,244.57

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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.