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Finding the Fourth Proportional to 193.74, 267.34 and 110.85

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Solution

The fourth proportional to 193.74, 267.34 and 110.85 is: 152.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.74 : 267.34 = 110.85 : x
  2. Step 2: Convert to fraction form
    193.74/267.34 = 110.85/x
  3. Step 3: Cross multiply
    193.74x = 267.34 × 110.85
  4. Step 4: Simplify right side
    193.74x = 29,634.64
  5. Step 5: Solve for x
    x = 29,634.64/193.74
  6. Step 6: Final answer
    x = 152.96

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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.