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Finding the Fourth Proportional to 174.22, 260.68 and 126.02

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Solution

The fourth proportional to 174.22, 260.68 and 126.02 is: 188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.22 : 260.68 = 126.02 : x
  2. Step 2: Convert to fraction form
    174.22/260.68 = 126.02/x
  3. Step 3: Cross multiply
    174.22x = 260.68 × 126.02
  4. Step 4: Simplify right side
    174.22x = 32,850.89
  5. Step 5: Solve for x
    x = 32,850.89/174.22
  6. Step 6: Final answer
    x = 188.56

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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.