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Finding the Fourth Proportional to 174.44, 261.70 and 52.69

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Solution

The fourth proportional to 174.44, 261.70 and 52.69 is: 79.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.44 : 261.70 = 52.69 : x
  2. Step 2: Convert to fraction form
    174.44/261.70 = 52.69/x
  3. Step 3: Cross multiply
    174.44x = 261.70 × 52.69
  4. Step 4: Simplify right side
    174.44x = 13,789.10
  5. Step 5: Solve for x
    x = 13,789.10/174.44
  6. Step 6: Final answer
    x = 79.05

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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.