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Finding the Fourth Proportional to 194.33, 268.25 and 111.44

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Solution

The fourth proportional to 194.33, 268.25 and 111.44 is: 153.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.33 : 268.25 = 111.44 : x
  2. Step 2: Convert to fraction form
    194.33/268.25 = 111.44/x
  3. Step 3: Cross multiply
    194.33x = 268.25 × 111.44
  4. Step 4: Simplify right side
    194.33x = 29,893.89
  5. Step 5: Solve for x
    x = 29,893.89/194.33
  6. Step 6: Final answer
    x = 153.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.