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Finding the Fourth Proportional to 194.94, 268.90 and 167.67

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Solution

The fourth proportional to 194.94, 268.90 and 167.67 is: 231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.94 : 268.90 = 167.67 : x
  2. Step 2: Convert to fraction form
    194.94/268.90 = 167.67/x
  3. Step 3: Cross multiply
    194.94x = 268.90 × 167.67
  4. Step 4: Simplify right side
    194.94x = 45,086.46
  5. Step 5: Solve for x
    x = 45,086.46/194.94
  6. Step 6: Final answer
    x = 231.28

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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.