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Finding the Fourth Proportional to 194.24, 267.98 and 120.60

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Solution

The fourth proportional to 194.24, 267.98 and 120.60 is: 166.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.24 : 267.98 = 120.60 : x
  2. Step 2: Convert to fraction form
    194.24/267.98 = 120.60/x
  3. Step 3: Cross multiply
    194.24x = 267.98 × 120.60
  4. Step 4: Simplify right side
    194.24x = 32,318.39
  5. Step 5: Solve for x
    x = 32,318.39/194.24
  6. Step 6: Final answer
    x = 166.38

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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.