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Finding the Fourth Proportional to 222.96, 333.72 and 174.12

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Solution

The fourth proportional to 222.96, 333.72 and 174.12 is: 260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.96 : 333.72 = 174.12 : x
  2. Step 2: Convert to fraction form
    222.96/333.72 = 174.12/x
  3. Step 3: Cross multiply
    222.96x = 333.72 × 174.12
  4. Step 4: Simplify right side
    222.96x = 58,107.33
  5. Step 5: Solve for x
    x = 58,107.33/222.96
  6. Step 6: Final answer
    x = 260.62

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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.