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Finding the Fourth Proportional to 193.79, 267.42 and 106.46

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Solution

The fourth proportional to 193.79, 267.42 and 106.46 is: 146.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.79 : 267.42 = 106.46 : x
  2. Step 2: Convert to fraction form
    193.79/267.42 = 106.46/x
  3. Step 3: Cross multiply
    193.79x = 267.42 × 106.46
  4. Step 4: Simplify right side
    193.79x = 28,468.20
  5. Step 5: Solve for x
    x = 28,468.20/193.79
  6. Step 6: Final answer
    x = 146.91

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