Home / 259,831.41-389,757.96-82,334.49

Finding the Fourth Proportional to 259,831.41, 389,757.96 and 82,334.49

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Solution

The fourth proportional to 259,831.41, 389,757.96 and 82,334.49 is: 123,505.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,831.41 : 389,757.96 = 82,334.49 : x
  2. Step 2: Convert to fraction form
    259,831.41/389,757.96 = 82,334.49/x
  3. Step 3: Cross multiply
    259,831.41x = 389,757.96 × 82,334.49
  4. Step 4: Simplify right side
    259,831.41x = 32,090,522,860.04
  5. Step 5: Solve for x
    x = 32,090,522,860.04/259,831.41
  6. Step 6: Final answer
    x = 123,505.17

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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.