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Finding the Fourth Proportional to 79,388.87, 119,058.68 and 26,786.05

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Solution

The fourth proportional to 79,388.87, 119,058.68 and 26,786.05 is: 40,170.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,388.87 : 119,058.68 = 26,786.05 : x
  2. Step 2: Convert to fraction form
    79,388.87/119,058.68 = 26,786.05/x
  3. Step 3: Cross multiply
    79,388.87x = 119,058.68 × 26,786.05
  4. Step 4: Simplify right side
    79,388.87x = 3,189,111,524.73
  5. Step 5: Solve for x
    x = 3,189,111,524.73/79,388.87
  6. Step 6: Final answer
    x = 40,170.77

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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.