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Finding the Fourth Proportional to 196.11, 293.98 and 74.37

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Solution

The fourth proportional to 196.11, 293.98 and 74.37 is: 111.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.11 : 293.98 = 74.37 : x
  2. Step 2: Convert to fraction form
    196.11/293.98 = 74.37/x
  3. Step 3: Cross multiply
    196.11x = 293.98 × 74.37
  4. Step 4: Simplify right side
    196.11x = 21,863.29
  5. Step 5: Solve for x
    x = 21,863.29/196.11
  6. Step 6: Final answer
    x = 111.48

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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.