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Finding the Fourth Proportional to 224.12, 336.14 and 61.77

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Solution

The fourth proportional to 224.12, 336.14 and 61.77 is: 92.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.12 : 336.14 = 61.77 : x
  2. Step 2: Convert to fraction form
    224.12/336.14 = 61.77/x
  3. Step 3: Cross multiply
    224.12x = 336.14 × 61.77
  4. Step 4: Simplify right side
    224.12x = 20,761.38
  5. Step 5: Solve for x
    x = 20,761.38/224.12
  6. Step 6: Final answer
    x = 92.64

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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.