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Finding the Fourth Proportional to 184,951.20, 255,163.92 and 121,324.32

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Solution

The fourth proportional to 184,951.20, 255,163.92 and 121,324.32 is: 167,382.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,951.20 : 255,163.92 = 121,324.32 : x
  2. Step 2: Convert to fraction form
    184,951.20/255,163.92 = 121,324.32/x
  3. Step 3: Cross multiply
    184,951.20x = 255,163.92 × 121,324.32
  4. Step 4: Simplify right side
    184,951.20x = 30,957,589,082.53
  5. Step 5: Solve for x
    x = 30,957,589,082.53/184,951.20
  6. Step 6: Final answer
    x = 167,382.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.