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Finding the Fourth Proportional to 73,879.10, 110,818.65 and 29,512.70

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Solution

The fourth proportional to 73,879.10, 110,818.65 and 29,512.70 is: 44,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,879.10 : 110,818.65 = 29,512.70 : x
  2. Step 2: Convert to fraction form
    73,879.10/110,818.65 = 29,512.70/x
  3. Step 3: Cross multiply
    73,879.10x = 110,818.65 × 29,512.70
  4. Step 4: Simplify right side
    73,879.10x = 3,270,557,571.86
  5. Step 5: Solve for x
    x = 3,270,557,571.86/73,879.10
  6. Step 6: Final answer
    x = 44,269.05

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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.