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Finding the Fourth Proportional to 193.92, 267.60 and 106.59

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Solution

The fourth proportional to 193.92, 267.60 and 106.59 is: 147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.92 : 267.60 = 106.59 : x
  2. Step 2: Convert to fraction form
    193.92/267.60 = 106.59/x
  3. Step 3: Cross multiply
    193.92x = 267.60 × 106.59
  4. Step 4: Simplify right side
    193.92x = 28,523.48
  5. Step 5: Solve for x
    x = 28,523.48/193.92
  6. Step 6: Final answer
    x = 147.09

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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.