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Finding the Fourth Proportional to 71,866.58, 107,794.86 and 26,879.38

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Solution

The fourth proportional to 71,866.58, 107,794.86 and 26,879.38 is: 40,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,866.58 : 107,794.86 = 26,879.38 : x
  2. Step 2: Convert to fraction form
    71,866.58/107,794.86 = 26,879.38/x
  3. Step 3: Cross multiply
    71,866.58x = 107,794.86 × 26,879.38
  4. Step 4: Simplify right side
    71,866.58x = 2,897,459,003.99
  5. Step 5: Solve for x
    x = 2,897,459,003.99/71,866.58
  6. Step 6: Final answer
    x = 40,317.20

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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.