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Finding the Fourth Proportional to 267.11, 400.56 and 93.74

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Solution

The fourth proportional to 267.11, 400.56 and 93.74 is: 140.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.11 : 400.56 = 93.74 : x
  2. Step 2: Convert to fraction form
    267.11/400.56 = 93.74/x
  3. Step 3: Cross multiply
    267.11x = 400.56 × 93.74
  4. Step 4: Simplify right side
    267.11x = 37,548.49
  5. Step 5: Solve for x
    x = 37,548.49/267.11
  6. Step 6: Final answer
    x = 140.57

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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.