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Finding the Fourth Proportional to 197.34, 296 and 168.64

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Solution

The fourth proportional to 197.34, 296 and 168.64 is: 252.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.34 : 296 = 168.64 : x
  2. Step 2: Convert to fraction form
    197.34/296 = 168.64/x
  3. Step 3: Cross multiply
    197.34x = 296 × 168.64
  4. Step 4: Simplify right side
    197.34x = 49,917.44
  5. Step 5: Solve for x
    x = 49,917.44/197.34
  6. Step 6: Final answer
    x = 252.95

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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.