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Finding the Fourth Proportional to 196.24, 270.92 and 130.04

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Solution

The fourth proportional to 196.24, 270.92 and 130.04 is: 179.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.24 : 270.92 = 130.04 : x
  2. Step 2: Convert to fraction form
    196.24/270.92 = 130.04/x
  3. Step 3: Cross multiply
    196.24x = 270.92 × 130.04
  4. Step 4: Simplify right side
    196.24x = 35,230.44
  5. Step 5: Solve for x
    x = 35,230.44/196.24
  6. Step 6: Final answer
    x = 179.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.