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Finding the Fourth Proportional to 196.74, 271.26 and 163.98

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Solution

The fourth proportional to 196.74, 271.26 and 163.98 is: 226.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.74 : 271.26 = 163.98 : x
  2. Step 2: Convert to fraction form
    196.74/271.26 = 163.98/x
  3. Step 3: Cross multiply
    196.74x = 271.26 × 163.98
  4. Step 4: Simplify right side
    196.74x = 44,481.21
  5. Step 5: Solve for x
    x = 44,481.21/196.74
  6. Step 6: Final answer
    x = 226.09

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