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Finding the Fourth Proportional to 224.32, 336.45 and 61.98

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Solution

The fourth proportional to 224.32, 336.45 and 61.98 is: 92.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.32 : 336.45 = 61.98 : x
  2. Step 2: Convert to fraction form
    224.32/336.45 = 61.98/x
  3. Step 3: Cross multiply
    224.32x = 336.45 × 61.98
  4. Step 4: Simplify right side
    224.32x = 20,853.17
  5. Step 5: Solve for x
    x = 20,853.17/224.32
  6. Step 6: Final answer
    x = 92.96

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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.