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Finding the Fourth Proportional to 174.26, 260.84 and 92.90

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Solution

The fourth proportional to 174.26, 260.84 and 92.90 is: 139.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.26 : 260.84 = 92.90 : x
  2. Step 2: Convert to fraction form
    174.26/260.84 = 92.90/x
  3. Step 3: Cross multiply
    174.26x = 260.84 × 92.90
  4. Step 4: Simplify right side
    174.26x = 24,232.04
  5. Step 5: Solve for x
    x = 24,232.04/174.26
  6. Step 6: Final answer
    x = 139.06

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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.