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Finding the Fourth Proportional to 132, 198.04 and 46.52

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Solution

The fourth proportional to 132, 198.04 and 46.52 is: 69.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132 : 198.04 = 46.52 : x
  2. Step 2: Convert to fraction form
    132/198.04 = 46.52/x
  3. Step 3: Cross multiply
    132x = 198.04 × 46.52
  4. Step 4: Simplify right side
    132x = 9,212.82
  5. Step 5: Solve for x
    x = 9,212.82/132
  6. Step 6: Final answer
    x = 69.79

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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.