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Finding the Fourth Proportional to 223.74, 335.58 and 61.43

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Solution

The fourth proportional to 223.74, 335.58 and 61.43 is: 92.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.74 : 335.58 = 61.43 : x
  2. Step 2: Convert to fraction form
    223.74/335.58 = 61.43/x
  3. Step 3: Cross multiply
    223.74x = 335.58 × 61.43
  4. Step 4: Simplify right side
    223.74x = 20,613.00
  5. Step 5: Solve for x
    x = 20,613.00/223.74
  6. Step 6: Final answer
    x = 92.13

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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.