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Finding the Fourth Proportional to 237.12, 355.89 and 92.94

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Solution

The fourth proportional to 237.12, 355.89 and 92.94 is: 139.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.12 : 355.89 = 92.94 : x
  2. Step 2: Convert to fraction form
    237.12/355.89 = 92.94/x
  3. Step 3: Cross multiply
    237.12x = 355.89 × 92.94
  4. Step 4: Simplify right side
    237.12x = 33,076.42
  5. Step 5: Solve for x
    x = 33,076.42/237.12
  6. Step 6: Final answer
    x = 139.49

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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.