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Finding the Fourth Proportional to 194.11, 267.83 and 111.24

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Solution

The fourth proportional to 194.11, 267.83 and 111.24 is: 153.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.11 : 267.83 = 111.24 : x
  2. Step 2: Convert to fraction form
    194.11/267.83 = 111.24/x
  3. Step 3: Cross multiply
    194.11x = 267.83 × 111.24
  4. Step 4: Simplify right side
    194.11x = 29,794.15
  5. Step 5: Solve for x
    x = 29,794.15/194.11
  6. Step 6: Final answer
    x = 153.49

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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.