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Finding the Fourth Proportional to 234.24, 323.28 and 147

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Solution

The fourth proportional to 234.24, 323.28 and 147 is: 202.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.24 : 323.28 = 147 : x
  2. Step 2: Convert to fraction form
    234.24/323.28 = 147/x
  3. Step 3: Cross multiply
    234.24x = 323.28 × 147
  4. Step 4: Simplify right side
    234.24x = 47,522.16
  5. Step 5: Solve for x
    x = 47,522.16/234.24
  6. Step 6: Final answer
    x = 202.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.