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Finding the Fourth Proportional to 267.24, 400.74 and 104.88

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Solution

The fourth proportional to 267.24, 400.74 and 104.88 is: 157.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.24 : 400.74 = 104.88 : x
  2. Step 2: Convert to fraction form
    267.24/400.74 = 104.88/x
  3. Step 3: Cross multiply
    267.24x = 400.74 × 104.88
  4. Step 4: Simplify right side
    267.24x = 42,029.61
  5. Step 5: Solve for x
    x = 42,029.61/267.24
  6. Step 6: Final answer
    x = 157.27

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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.