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Finding the Fourth Proportional to 224.23, 336.35 and 61.91

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Solution

The fourth proportional to 224.23, 336.35 and 61.91 is: 92.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.23 : 336.35 = 61.91 : x
  2. Step 2: Convert to fraction form
    224.23/336.35 = 61.91/x
  3. Step 3: Cross multiply
    224.23x = 336.35 × 61.91
  4. Step 4: Simplify right side
    224.23x = 20,824.42
  5. Step 5: Solve for x
    x = 20,824.42/224.23
  6. Step 6: Final answer
    x = 92.87

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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.