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Finding the Fourth Proportional to 196.94, 295.44 and 115.86

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Solution

The fourth proportional to 196.94, 295.44 and 115.86 is: 173.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.94 : 295.44 = 115.86 : x
  2. Step 2: Convert to fraction form
    196.94/295.44 = 115.86/x
  3. Step 3: Cross multiply
    196.94x = 295.44 × 115.86
  4. Step 4: Simplify right side
    196.94x = 34,229.68
  5. Step 5: Solve for x
    x = 34,229.68/196.94
  6. Step 6: Final answer
    x = 173.81

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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.