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Finding the Fourth Proportional to 396.16, 593.92 and 168

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Solution

The fourth proportional to 396.16, 593.92 and 168 is: 251.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.16 : 593.92 = 168 : x
  2. Step 2: Convert to fraction form
    396.16/593.92 = 168/x
  3. Step 3: Cross multiply
    396.16x = 593.92 × 168
  4. Step 4: Simplify right side
    396.16x = 99,778.56
  5. Step 5: Solve for x
    x = 99,778.56/396.16
  6. Step 6: Final answer
    x = 251.86

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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.