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Finding the Fourth Proportional to 79,796.58, 119,545.38 and 71,580.75

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Solution

The fourth proportional to 79,796.58, 119,545.38 and 71,580.75 is: 107,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,796.58 : 119,545.38 = 71,580.75 : x
  2. Step 2: Convert to fraction form
    79,796.58/119,545.38 = 71,580.75/x
  3. Step 3: Cross multiply
    79,796.58x = 119,545.38 × 71,580.75
  4. Step 4: Simplify right side
    79,796.58x = 8,557,147,959.44
  5. Step 5: Solve for x
    x = 8,557,147,959.44/79,796.58
  6. Step 6: Final answer
    x = 107,237.03

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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.