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Finding the Fourth Proportional to 267,439.56, 401,219.88 and 89,941.69

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Solution

The fourth proportional to 267,439.56, 401,219.88 and 89,941.69 is: 134,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,439.56 : 401,219.88 = 89,941.69 : x
  2. Step 2: Convert to fraction form
    267,439.56/401,219.88 = 89,941.69/x
  3. Step 3: Cross multiply
    267,439.56x = 401,219.88 × 89,941.69
  4. Step 4: Simplify right side
    267,439.56x = 36,086,394,068.80
  5. Step 5: Solve for x
    x = 36,086,394,068.80/267,439.56
  6. Step 6: Final answer
    x = 134,932.90

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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.