Home / 259,546.87-389,389.56-82,057.24

Finding the Fourth Proportional to 259,546.87, 389,389.56 and 82,057.24

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Solution

The fourth proportional to 259,546.87, 389,389.56 and 82,057.24 is: 123,107.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,546.87 : 389,389.56 = 82,057.24 : x
  2. Step 2: Convert to fraction form
    259,546.87/389,389.56 = 82,057.24/x
  3. Step 3: Cross multiply
    259,546.87x = 389,389.56 × 82,057.24
  4. Step 4: Simplify right side
    259,546.87x = 31,952,232,578.41
  5. Step 5: Solve for x
    x = 31,952,232,578.41/259,546.87
  6. Step 6: Final answer
    x = 123,107.76

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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.