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Finding the Fourth Proportional to 267.99, 401.90 and 94.61

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Solution

The fourth proportional to 267.99, 401.90 and 94.61 is: 141.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.99 : 401.90 = 94.61 : x
  2. Step 2: Convert to fraction form
    267.99/401.90 = 94.61/x
  3. Step 3: Cross multiply
    267.99x = 401.90 × 94.61
  4. Step 4: Simplify right side
    267.99x = 38,023.76
  5. Step 5: Solve for x
    x = 38,023.76/267.99
  6. Step 6: Final answer
    x = 141.88

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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.