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Finding the Fourth Proportional to 267,308.91, 401,023.17 and 89,811.09

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Solution

The fourth proportional to 267,308.91, 401,023.17 and 89,811.09 is: 134,736.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,308.91 : 401,023.17 = 89,811.09 : x
  2. Step 2: Convert to fraction form
    267,308.91/401,023.17 = 89,811.09/x
  3. Step 3: Cross multiply
    267,308.91x = 401,023.17 × 89,811.09
  4. Step 4: Simplify right side
    267,308.91x = 36,016,328,012.96
  5. Step 5: Solve for x
    x = 36,016,328,012.96/267,308.91
  6. Step 6: Final answer
    x = 134,736.73

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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.