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Finding the Fourth Proportional to 174.22, 240.50 and 107.84

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Solution

The fourth proportional to 174.22, 240.50 and 107.84 is: 148.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.22 : 240.50 = 107.84 : x
  2. Step 2: Convert to fraction form
    174.22/240.50 = 107.84/x
  3. Step 3: Cross multiply
    174.22x = 240.50 × 107.84
  4. Step 4: Simplify right side
    174.22x = 25,935.52
  5. Step 5: Solve for x
    x = 25,935.52/174.22
  6. Step 6: Final answer
    x = 148.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.