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Finding the Fourth Proportional to 173.94, 260.95 and 76.44

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Solution

The fourth proportional to 173.94, 260.95 and 76.44 is: 114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.94 : 260.95 = 76.44 : x
  2. Step 2: Convert to fraction form
    173.94/260.95 = 76.44/x
  3. Step 3: Cross multiply
    173.94x = 260.95 × 76.44
  4. Step 4: Simplify right side
    173.94x = 19,945.85
  5. Step 5: Solve for x
    x = 19,945.85/173.94
  6. Step 6: Final answer
    x = 114.67

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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.