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Finding the Fourth Proportional to 54,379.74, 81,559.89 and 34,599.54

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Solution

The fourth proportional to 54,379.74, 81,559.89 and 34,599.54 is: 51,893.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,379.74 : 81,559.89 = 34,599.54 : x
  2. Step 2: Convert to fraction form
    54,379.74/81,559.89 = 34,599.54/x
  3. Step 3: Cross multiply
    54,379.74x = 81,559.89 × 34,599.54
  4. Step 4: Simplify right side
    54,379.74x = 2,821,934,676.45
  5. Step 5: Solve for x
    x = 2,821,934,676.45/54,379.74
  6. Step 6: Final answer
    x = 51,893.13

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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.