Home / 259,936.43-389,918.48-82,457.33

Finding the Fourth Proportional to 259,936.43, 389,918.48 and 82,457.33

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Solution

The fourth proportional to 259,936.43, 389,918.48 and 82,457.33 is: 123,690.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,936.43 : 389,918.48 = 82,457.33 : x
  2. Step 2: Convert to fraction form
    259,936.43/389,918.48 = 82,457.33/x
  3. Step 3: Cross multiply
    259,936.43x = 389,918.48 × 82,457.33
  4. Step 4: Simplify right side
    259,936.43x = 32,151,634,416.58
  5. Step 5: Solve for x
    x = 32,151,634,416.58/259,936.43
  6. Step 6: Final answer
    x = 123,690.38

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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.