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Finding the Fourth Proportional to 197.76, 296.52 and 94.96

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Solution

The fourth proportional to 197.76, 296.52 and 94.96 is: 142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.76 : 296.52 = 94.96 : x
  2. Step 2: Convert to fraction form
    197.76/296.52 = 94.96/x
  3. Step 3: Cross multiply
    197.76x = 296.52 × 94.96
  4. Step 4: Simplify right side
    197.76x = 28,157.54
  5. Step 5: Solve for x
    x = 28,157.54/197.76
  6. Step 6: Final answer
    x = 142.38

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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.