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Finding the Fourth Proportional to 167.94, 251.74 and 94.85

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Solution

The fourth proportional to 167.94, 251.74 and 94.85 is: 142.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.94 : 251.74 = 94.85 : x
  2. Step 2: Convert to fraction form
    167.94/251.74 = 94.85/x
  3. Step 3: Cross multiply
    167.94x = 251.74 × 94.85
  4. Step 4: Simplify right side
    167.94x = 23,875.81
  5. Step 5: Solve for x
    x = 23,875.81/167.94
  6. Step 6: Final answer
    x = 142.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.