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Finding the Fourth Proportional to 294.48, 442.08 and 132.48

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Solution

The fourth proportional to 294.48, 442.08 and 132.48 is: 198.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.48 : 442.08 = 132.48 : x
  2. Step 2: Convert to fraction form
    294.48/442.08 = 132.48/x
  3. Step 3: Cross multiply
    294.48x = 442.08 × 132.48
  4. Step 4: Simplify right side
    294.48x = 58,566.76
  5. Step 5: Solve for x
    x = 58,566.76/294.48
  6. Step 6: Final answer
    x = 198.88

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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.