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Finding the Fourth Proportional to 173.71, 260.61 and 158.44

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Solution

The fourth proportional to 173.71, 260.61 and 158.44 is: 237.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.71 : 260.61 = 158.44 : x
  2. Step 2: Convert to fraction form
    173.71/260.61 = 158.44/x
  3. Step 3: Cross multiply
    173.71x = 260.61 × 158.44
  4. Step 4: Simplify right side
    173.71x = 41,291.05
  5. Step 5: Solve for x
    x = 41,291.05/173.71
  6. Step 6: Final answer
    x = 237.70

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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.