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Finding the Fourth Proportional to 167.94, 231.68 and 118.84

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Solution

The fourth proportional to 167.94, 231.68 and 118.84 is: 163.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.94 : 231.68 = 118.84 : x
  2. Step 2: Convert to fraction form
    167.94/231.68 = 118.84/x
  3. Step 3: Cross multiply
    167.94x = 231.68 × 118.84
  4. Step 4: Simplify right side
    167.94x = 27,532.84
  5. Step 5: Solve for x
    x = 27,532.84/167.94
  6. Step 6: Final answer
    x = 163.95

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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.