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Finding the Fourth Proportional to 196.44, 271.22 and 134.23

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Solution

The fourth proportional to 196.44, 271.22 and 134.23 is: 185.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.44 : 271.22 = 134.23 : x
  2. Step 2: Convert to fraction form
    196.44/271.22 = 134.23/x
  3. Step 3: Cross multiply
    196.44x = 271.22 × 134.23
  4. Step 4: Simplify right side
    196.44x = 36,405.86
  5. Step 5: Solve for x
    x = 36,405.86/196.44
  6. Step 6: Final answer
    x = 185.33

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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.