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Finding the Fourth Proportional to 80,429.72, 110,993.14 and 44,619.73

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Solution

The fourth proportional to 80,429.72, 110,993.14 and 44,619.73 is: 61,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,429.72 : 110,993.14 = 44,619.73 : x
  2. Step 2: Convert to fraction form
    80,429.72/110,993.14 = 44,619.73/x
  3. Step 3: Cross multiply
    80,429.72x = 110,993.14 × 44,619.73
  4. Step 4: Simplify right side
    80,429.72x = 4,952,483,938.65
  5. Step 5: Solve for x
    x = 4,952,483,938.65/80,429.72
  6. Step 6: Final answer
    x = 61,575.30

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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.