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Finding the Fourth Proportional to 194.27, 268.11 and 106.95

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Solution

The fourth proportional to 194.27, 268.11 and 106.95 is: 147.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.27 : 268.11 = 106.95 : x
  2. Step 2: Convert to fraction form
    194.27/268.11 = 106.95/x
  3. Step 3: Cross multiply
    194.27x = 268.11 × 106.95
  4. Step 4: Simplify right side
    194.27x = 28,673.11
  5. Step 5: Solve for x
    x = 28,673.11/194.27
  6. Step 6: Final answer
    x = 147.59

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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.