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Finding the Fourth Proportional to 223.94, 335.92 and 61.64

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Solution

The fourth proportional to 223.94, 335.92 and 61.64 is: 92.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.94 : 335.92 = 61.64 : x
  2. Step 2: Convert to fraction form
    223.94/335.92 = 61.64/x
  3. Step 3: Cross multiply
    223.94x = 335.92 × 61.64
  4. Step 4: Simplify right side
    223.94x = 20,706.11
  5. Step 5: Solve for x
    x = 20,706.11/223.94
  6. Step 6: Final answer
    x = 92.46

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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.