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Finding the Fourth Proportional to 204.24, 281.91 and 116.94

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Solution

The fourth proportional to 204.24, 281.91 and 116.94 is: 161.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.24 : 281.91 = 116.94 : x
  2. Step 2: Convert to fraction form
    204.24/281.91 = 116.94/x
  3. Step 3: Cross multiply
    204.24x = 281.91 × 116.94
  4. Step 4: Simplify right side
    204.24x = 32,966.56
  5. Step 5: Solve for x
    x = 32,966.56/204.24
  6. Step 6: Final answer
    x = 161.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.