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Finding the Fourth Proportional to 79,879.34, 119,843.31 and 37,791.74

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Solution

The fourth proportional to 79,879.34, 119,843.31 and 37,791.74 is: 56,699.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,879.34 : 119,843.31 = 37,791.74 : x
  2. Step 2: Convert to fraction form
    79,879.34/119,843.31 = 37,791.74/x
  3. Step 3: Cross multiply
    79,879.34x = 119,843.31 × 37,791.74
  4. Step 4: Simplify right side
    79,879.34x = 4,529,087,212.26
  5. Step 5: Solve for x
    x = 4,529,087,212.26/79,879.34
  6. Step 6: Final answer
    x = 56,699.11

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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.