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Finding the Fourth Proportional to 80,429.68, 110,993.24 and 44,620.40

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Solution

The fourth proportional to 80,429.68, 110,993.24 and 44,620.40 is: 61,576.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,429.68 : 110,993.24 = 44,620.40 : x
  2. Step 2: Convert to fraction form
    80,429.68/110,993.24 = 44,620.40/x
  3. Step 3: Cross multiply
    80,429.68x = 110,993.24 × 44,620.40
  4. Step 4: Simplify right side
    80,429.68x = 4,952,562,766.10
  5. Step 5: Solve for x
    x = 4,952,562,766.10/80,429.68
  6. Step 6: Final answer
    x = 61,576.31

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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.