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Finding the Fourth Proportional to 192.29, 288.45 and 132.02

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Solution

The fourth proportional to 192.29, 288.45 and 132.02 is: 198.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.29 : 288.45 = 132.02 : x
  2. Step 2: Convert to fraction form
    192.29/288.45 = 132.02/x
  3. Step 3: Cross multiply
    192.29x = 288.45 × 132.02
  4. Step 4: Simplify right side
    192.29x = 38,081.17
  5. Step 5: Solve for x
    x = 38,081.17/192.29
  6. Step 6: Final answer
    x = 198.04

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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.