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Finding the Fourth Proportional to 196.25, 294.17 and 93.54

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Solution

The fourth proportional to 196.25, 294.17 and 93.54 is: 140.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.25 : 294.17 = 93.54 : x
  2. Step 2: Convert to fraction form
    196.25/294.17 = 93.54/x
  3. Step 3: Cross multiply
    196.25x = 294.17 × 93.54
  4. Step 4: Simplify right side
    196.25x = 27,516.66
  5. Step 5: Solve for x
    x = 27,516.66/196.25
  6. Step 6: Final answer
    x = 140.21

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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.