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Finding the Fourth Proportional to 79,930.64, 110,305.20 and 44,120.69

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Solution

The fourth proportional to 79,930.64, 110,305.20 and 44,120.69 is: 60,887.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,930.64 : 110,305.20 = 44,120.69 : x
  2. Step 2: Convert to fraction form
    79,930.64/110,305.20 = 44,120.69/x
  3. Step 3: Cross multiply
    79,930.64x = 110,305.20 × 44,120.69
  4. Step 4: Simplify right side
    79,930.64x = 4,866,741,810.35
  5. Step 5: Solve for x
    x = 4,866,741,810.35/79,930.64
  6. Step 6: Final answer
    x = 60,887.06

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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.