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Finding the Fourth Proportional to 73,461.73, 110,183.92 and 20,159.09

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Solution

The fourth proportional to 73,461.73, 110,183.92 and 20,159.09 is: 30,236.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,461.73 : 110,183.92 = 20,159.09 : x
  2. Step 2: Convert to fraction form
    73,461.73/110,183.92 = 20,159.09/x
  3. Step 3: Cross multiply
    73,461.73x = 110,183.92 × 20,159.09
  4. Step 4: Simplify right side
    73,461.73x = 2,221,207,559.83
  5. Step 5: Solve for x
    x = 2,221,207,559.83/73,461.73
  6. Step 6: Final answer
    x = 30,236.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.