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Finding the Fourth Proportional to 183.92, 275.81 and 92.49

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Solution

The fourth proportional to 183.92, 275.81 and 92.49 is: 138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.92 : 275.81 = 92.49 : x
  2. Step 2: Convert to fraction form
    183.92/275.81 = 92.49/x
  3. Step 3: Cross multiply
    183.92x = 275.81 × 92.49
  4. Step 4: Simplify right side
    183.92x = 25,509.72
  5. Step 5: Solve for x
    x = 25,509.72/183.92
  6. Step 6: Final answer
    x = 138.70

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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.