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Finding the Fourth Proportional to 178.44, 267.54 and 62.88

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Solution

The fourth proportional to 178.44, 267.54 and 62.88 is: 94.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.44 : 267.54 = 62.88 : x
  2. Step 2: Convert to fraction form
    178.44/267.54 = 62.88/x
  3. Step 3: Cross multiply
    178.44x = 267.54 × 62.88
  4. Step 4: Simplify right side
    178.44x = 16,822.92
  5. Step 5: Solve for x
    x = 16,822.92/178.44
  6. Step 6: Final answer
    x = 94.28

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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.