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Finding the Fourth Proportional to 194.13, 267.89 and 135.99

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Solution

The fourth proportional to 194.13, 267.89 and 135.99 is: 187.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.13 : 267.89 = 135.99 : x
  2. Step 2: Convert to fraction form
    194.13/267.89 = 135.99/x
  3. Step 3: Cross multiply
    194.13x = 267.89 × 135.99
  4. Step 4: Simplify right side
    194.13x = 36,429.68
  5. Step 5: Solve for x
    x = 36,429.68/194.13
  6. Step 6: Final answer
    x = 187.66

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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.