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Finding the Fourth Proportional to 79,616.82, 119,399.79 and 26,298.90

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Solution

The fourth proportional to 79,616.82, 119,399.79 and 26,298.90 is: 39,439.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,616.82 : 119,399.79 = 26,298.90 : x
  2. Step 2: Convert to fraction form
    79,616.82/119,399.79 = 26,298.90/x
  3. Step 3: Cross multiply
    79,616.82x = 119,399.79 × 26,298.90
  4. Step 4: Simplify right side
    79,616.82x = 3,140,083,137.23
  5. Step 5: Solve for x
    x = 3,140,083,137.23/79,616.82
  6. Step 6: Final answer
    x = 39,439.95

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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.