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Finding the Fourth Proportional to 196.25, 294.38 and 93.56

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Solution

The fourth proportional to 196.25, 294.38 and 93.56 is: 140.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.25 : 294.38 = 93.56 : x
  2. Step 2: Convert to fraction form
    196.25/294.38 = 93.56/x
  3. Step 3: Cross multiply
    196.25x = 294.38 × 93.56
  4. Step 4: Simplify right side
    196.25x = 27,541.13
  5. Step 5: Solve for x
    x = 27,541.13/196.25
  6. Step 6: Final answer
    x = 140.34

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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.