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Finding the Fourth Proportional to 173.50, 260.40 and 92.24

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Solution

The fourth proportional to 173.50, 260.40 and 92.24 is: 138.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.50 : 260.40 = 92.24 : x
  2. Step 2: Convert to fraction form
    173.50/260.40 = 92.24/x
  3. Step 3: Cross multiply
    173.50x = 260.40 × 92.24
  4. Step 4: Simplify right side
    173.50x = 24,019.30
  5. Step 5: Solve for x
    x = 24,019.30/173.50
  6. Step 6: Final answer
    x = 138.44

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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.