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Finding the Fourth Proportional to 80,449.97, 111,021.73 and 44,643.32

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Solution

The fourth proportional to 80,449.97, 111,021.73 and 44,643.32 is: 61,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,449.97 : 111,021.73 = 44,643.32 : x
  2. Step 2: Convert to fraction form
    80,449.97/111,021.73 = 44,643.32/x
  3. Step 3: Cross multiply
    80,449.97x = 111,021.73 × 44,643.32
  4. Step 4: Simplify right side
    80,449.97x = 4,956,377,952.63
  5. Step 5: Solve for x
    x = 4,956,377,952.63/80,449.97
  6. Step 6: Final answer
    x = 61,608.20

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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.