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Finding the Fourth Proportional to 174.97, 262.50 and 72.26

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Solution

The fourth proportional to 174.97, 262.50 and 72.26 is: 108.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.97 : 262.50 = 72.26 : x
  2. Step 2: Convert to fraction form
    174.97/262.50 = 72.26/x
  3. Step 3: Cross multiply
    174.97x = 262.50 × 72.26
  4. Step 4: Simplify right side
    174.97x = 18,968.25
  5. Step 5: Solve for x
    x = 18,968.25/174.97
  6. Step 6: Final answer
    x = 108.41

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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.