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Finding the Fourth Proportional to 196.36, 271.08 and 118.76

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Solution

The fourth proportional to 196.36, 271.08 and 118.76 is: 163.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.36 : 271.08 = 118.76 : x
  2. Step 2: Convert to fraction form
    196.36/271.08 = 118.76/x
  3. Step 3: Cross multiply
    196.36x = 271.08 × 118.76
  4. Step 4: Simplify right side
    196.36x = 32,193.46
  5. Step 5: Solve for x
    x = 32,193.46/196.36
  6. Step 6: Final answer
    x = 163.95

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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.