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Finding the Fourth Proportional to 174.99, 262.80 and 111.27

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Solution

The fourth proportional to 174.99, 262.80 and 111.27 is: 167.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.99 : 262.80 = 111.27 : x
  2. Step 2: Convert to fraction form
    174.99/262.80 = 111.27/x
  3. Step 3: Cross multiply
    174.99x = 262.80 × 111.27
  4. Step 4: Simplify right side
    174.99x = 29,241.76
  5. Step 5: Solve for x
    x = 29,241.76/174.99
  6. Step 6: Final answer
    x = 167.11

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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.