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Finding the Fourth Proportional to 173.48, 260.16 and 75.92

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Solution

The fourth proportional to 173.48, 260.16 and 75.92 is: 113.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.48 : 260.16 = 75.92 : x
  2. Step 2: Convert to fraction form
    173.48/260.16 = 75.92/x
  3. Step 3: Cross multiply
    173.48x = 260.16 × 75.92
  4. Step 4: Simplify right side
    173.48x = 19,751.35
  5. Step 5: Solve for x
    x = 19,751.35/173.48
  6. Step 6: Final answer
    x = 113.85

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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.