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Finding the Fourth Proportional to 79,761.11, 119,662.41 and 29,845.11

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Solution

The fourth proportional to 79,761.11, 119,662.41 and 29,845.11 is: 44,775.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,761.11 : 119,662.41 = 29,845.11 : x
  2. Step 2: Convert to fraction form
    79,761.11/119,662.41 = 29,845.11/x
  3. Step 3: Cross multiply
    79,761.11x = 119,662.41 × 29,845.11
  4. Step 4: Simplify right side
    79,761.11x = 3,571,337,676.87
  5. Step 5: Solve for x
    x = 3,571,337,676.87/79,761.11
  6. Step 6: Final answer
    x = 44,775.43

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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.