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Finding the Fourth Proportional to 267.76, 369.52 and 149.73

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Solution

The fourth proportional to 267.76, 369.52 and 149.73 is: 206.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.76 : 369.52 = 149.73 : x
  2. Step 2: Convert to fraction form
    267.76/369.52 = 149.73/x
  3. Step 3: Cross multiply
    267.76x = 369.52 × 149.73
  4. Step 4: Simplify right side
    267.76x = 55,326.47
  5. Step 5: Solve for x
    x = 55,326.47/267.76
  6. Step 6: Final answer
    x = 206.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.