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Finding the Fourth Proportional to 237.33, 355.82 and 74.92

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Solution

The fourth proportional to 237.33, 355.82 and 74.92 is: 112.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.33 : 355.82 = 74.92 : x
  2. Step 2: Convert to fraction form
    237.33/355.82 = 74.92/x
  3. Step 3: Cross multiply
    237.33x = 355.82 × 74.92
  4. Step 4: Simplify right side
    237.33x = 26,658.03
  5. Step 5: Solve for x
    x = 26,658.03/237.33
  6. Step 6: Final answer
    x = 112.32

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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.