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Finding the Fourth Proportional to 234.24, 350.88 and 142.88

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Solution

The fourth proportional to 234.24, 350.88 and 142.88 is: 214.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.24 : 350.88 = 142.88 : x
  2. Step 2: Convert to fraction form
    234.24/350.88 = 142.88/x
  3. Step 3: Cross multiply
    234.24x = 350.88 × 142.88
  4. Step 4: Simplify right side
    234.24x = 50,133.73
  5. Step 5: Solve for x
    x = 50,133.73/234.24
  6. Step 6: Final answer
    x = 214.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.