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Finding the Fourth Proportional to 73,081.56, 100,815.38 and 44,393.60

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Solution

The fourth proportional to 73,081.56, 100,815.38 and 44,393.60 is: 61,240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,081.56 : 100,815.38 = 44,393.60 : x
  2. Step 2: Convert to fraction form
    73,081.56/100,815.38 = 44,393.60/x
  3. Step 3: Cross multiply
    73,081.56x = 100,815.38 × 44,393.60
  4. Step 4: Simplify right side
    73,081.56x = 4,475,557,653.57
  5. Step 5: Solve for x
    x = 4,475,557,653.57/73,081.56
  6. Step 6: Final answer
    x = 61,240.59

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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.