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Finding the Fourth Proportional to 238.74, 358.24 and 94.46

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Solution

The fourth proportional to 238.74, 358.24 and 94.46 is: 141.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.74 : 358.24 = 94.46 : x
  2. Step 2: Convert to fraction form
    238.74/358.24 = 94.46/x
  3. Step 3: Cross multiply
    238.74x = 358.24 × 94.46
  4. Step 4: Simplify right side
    238.74x = 33,839.35
  5. Step 5: Solve for x
    x = 33,839.35/238.74
  6. Step 6: Final answer
    x = 141.74

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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.