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Finding the Fourth Proportional to 267.12, 368.52 and 163.44

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Solution

The fourth proportional to 267.12, 368.52 and 163.44 is: 225.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.12 : 368.52 = 163.44 : x
  2. Step 2: Convert to fraction form
    267.12/368.52 = 163.44/x
  3. Step 3: Cross multiply
    267.12x = 368.52 × 163.44
  4. Step 4: Simplify right side
    267.12x = 60,230.91
  5. Step 5: Solve for x
    x = 60,230.91/267.12
  6. Step 6: Final answer
    x = 225.48

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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.