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Finding the Fourth Proportional to 194.16, 267.60 and 135.84

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Solution

The fourth proportional to 194.16, 267.60 and 135.84 is: 187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.16 : 267.60 = 135.84 : x
  2. Step 2: Convert to fraction form
    194.16/267.60 = 135.84/x
  3. Step 3: Cross multiply
    194.16x = 267.60 × 135.84
  4. Step 4: Simplify right side
    194.16x = 36,350.78
  5. Step 5: Solve for x
    x = 36,350.78/194.16
  6. Step 6: Final answer
    x = 187.22

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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.