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Finding the Fourth Proportional to 196.24, 294.26 and 74.41

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Solution

The fourth proportional to 196.24, 294.26 and 74.41 is: 111.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.24 : 294.26 = 74.41 : x
  2. Step 2: Convert to fraction form
    196.24/294.26 = 74.41/x
  3. Step 3: Cross multiply
    196.24x = 294.26 × 74.41
  4. Step 4: Simplify right side
    196.24x = 21,895.89
  5. Step 5: Solve for x
    x = 21,895.89/196.24
  6. Step 6: Final answer
    x = 111.58

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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.