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Finding the Fourth Proportional to 267.32, 400.99 and 74.94

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Solution

The fourth proportional to 267.32, 400.99 and 74.94 is: 112.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.32 : 400.99 = 74.94 : x
  2. Step 2: Convert to fraction form
    267.32/400.99 = 74.94/x
  3. Step 3: Cross multiply
    267.32x = 400.99 × 74.94
  4. Step 4: Simplify right side
    267.32x = 30,050.19
  5. Step 5: Solve for x
    x = 30,050.19/267.32
  6. Step 6: Final answer
    x = 112.41

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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.