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Finding the Fourth Proportional to 236.88, 354.48 and 167.92

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Solution

The fourth proportional to 236.88, 354.48 and 167.92 is: 251.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.88 : 354.48 = 167.92 : x
  2. Step 2: Convert to fraction form
    236.88/354.48 = 167.92/x
  3. Step 3: Cross multiply
    236.88x = 354.48 × 167.92
  4. Step 4: Simplify right side
    236.88x = 59,524.28
  5. Step 5: Solve for x
    x = 59,524.28/236.88
  6. Step 6: Final answer
    x = 251.28

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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.