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Finding the Fourth Proportional to 236.43, 354.47 and 167.94

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Solution

The fourth proportional to 236.43, 354.47 and 167.94 is: 251.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.43 : 354.47 = 167.94 : x
  2. Step 2: Convert to fraction form
    236.43/354.47 = 167.94/x
  3. Step 3: Cross multiply
    236.43x = 354.47 × 167.94
  4. Step 4: Simplify right side
    236.43x = 59,528.85
  5. Step 5: Solve for x
    x = 59,528.85/236.43
  6. Step 6: Final answer
    x = 251.78

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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.