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Finding the Fourth Proportional to 173.68, 260.57 and 92.41

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Solution

The fourth proportional to 173.68, 260.57 and 92.41 is: 138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.68 : 260.57 = 92.41 : x
  2. Step 2: Convert to fraction form
    173.68/260.57 = 92.41/x
  3. Step 3: Cross multiply
    173.68x = 260.57 × 92.41
  4. Step 4: Simplify right side
    173.68x = 24,078.16
  5. Step 5: Solve for x
    x = 24,078.16/173.68
  6. Step 6: Final answer
    x = 138.64

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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.