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Finding the Fourth Proportional to 79,379.73, 119,062.35 and 26,789.67

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Solution

The fourth proportional to 79,379.73, 119,062.35 and 26,789.67 is: 40,182.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,379.73 : 119,062.35 = 26,789.67 : x
  2. Step 2: Convert to fraction form
    79,379.73/119,062.35 = 26,789.67/x
  3. Step 3: Cross multiply
    79,379.73x = 119,062.35 × 26,789.67
  4. Step 4: Simplify right side
    79,379.73x = 3,189,641,065.92
  5. Step 5: Solve for x
    x = 3,189,641,065.92/79,379.73
  6. Step 6: Final answer
    x = 40,182.06

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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.