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Finding the Fourth Proportional to 238.33, 357.32 and 75.92

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Solution

The fourth proportional to 238.33, 357.32 and 75.92 is: 113.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.33 : 357.32 = 75.92 : x
  2. Step 2: Convert to fraction form
    238.33/357.32 = 75.92/x
  3. Step 3: Cross multiply
    238.33x = 357.32 × 75.92
  4. Step 4: Simplify right side
    238.33x = 27,127.73
  5. Step 5: Solve for x
    x = 27,127.73/238.33
  6. Step 6: Final answer
    x = 113.82

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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.