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Finding the Fourth Proportional to 196.96, 295.48 and 115.88

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Solution

The fourth proportional to 196.96, 295.48 and 115.88 is: 173.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.96 : 295.48 = 115.88 : x
  2. Step 2: Convert to fraction form
    196.96/295.48 = 115.88/x
  3. Step 3: Cross multiply
    196.96x = 295.48 × 115.88
  4. Step 4: Simplify right side
    196.96x = 34,240.22
  5. Step 5: Solve for x
    x = 34,240.22/196.96
  6. Step 6: Final answer
    x = 173.84

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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.