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Finding the Fourth Proportional to 73,044.82, 100,800.21 and 41,212.90

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Solution

The fourth proportional to 73,044.82, 100,800.21 and 41,212.90 is: 56,872.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,044.82 : 100,800.21 = 41,212.90 : x
  2. Step 2: Convert to fraction form
    73,044.82/100,800.21 = 41,212.90/x
  3. Step 3: Cross multiply
    73,044.82x = 100,800.21 × 41,212.90
  4. Step 4: Simplify right side
    73,044.82x = 4,154,268,974.71
  5. Step 5: Solve for x
    x = 4,154,268,974.71/73,044.82
  6. Step 6: Final answer
    x = 56,872.88

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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.