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Finding the Fourth Proportional to 223.60, 335.20 and 114

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Solution

The fourth proportional to 223.60, 335.20 and 114 is: 170.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.60 : 335.20 = 114 : x
  2. Step 2: Convert to fraction form
    223.60/335.20 = 114/x
  3. Step 3: Cross multiply
    223.60x = 335.20 × 114
  4. Step 4: Simplify right side
    223.60x = 38,212.80
  5. Step 5: Solve for x
    x = 38,212.80/223.60
  6. Step 6: Final answer
    x = 170.90

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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.