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Finding the Fourth Proportional to 196.28, 294.96 and 134.99

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Solution

The fourth proportional to 196.28, 294.96 and 134.99 is: 202.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.28 : 294.96 = 134.99 : x
  2. Step 2: Convert to fraction form
    196.28/294.96 = 134.99/x
  3. Step 3: Cross multiply
    196.28x = 294.96 × 134.99
  4. Step 4: Simplify right side
    196.28x = 39,816.65
  5. Step 5: Solve for x
    x = 39,816.65/196.28
  6. Step 6: Final answer
    x = 202.86

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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.