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Finding the Fourth Proportional to 234.64, 351.76 and 132

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Solution

The fourth proportional to 234.64, 351.76 and 132 is: 197.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.64 : 351.76 = 132 : x
  2. Step 2: Convert to fraction form
    234.64/351.76 = 132/x
  3. Step 3: Cross multiply
    234.64x = 351.76 × 132
  4. Step 4: Simplify right side
    234.64x = 46,432.32
  5. Step 5: Solve for x
    x = 46,432.32/234.64
  6. Step 6: Final answer
    x = 197.89

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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.