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Finding the Fourth Proportional to 174.22, 261.52 and 105.92

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Solution

The fourth proportional to 174.22, 261.52 and 105.92 is: 159.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.22 : 261.52 = 105.92 : x
  2. Step 2: Convert to fraction form
    174.22/261.52 = 105.92/x
  3. Step 3: Cross multiply
    174.22x = 261.52 × 105.92
  4. Step 4: Simplify right side
    174.22x = 27,700.20
  5. Step 5: Solve for x
    x = 27,700.20/174.22
  6. Step 6: Final answer
    x = 159.00

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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.