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Finding the Fourth Proportional to 339,993.11, 469,187.89 and 187,028.01

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Solution

The fourth proportional to 339,993.11, 469,187.89 and 187,028.01 is: 258,097.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,993.11 : 469,187.89 = 187,028.01 : x
  2. Step 2: Convert to fraction form
    339,993.11/469,187.89 = 187,028.01/x
  3. Step 3: Cross multiply
    339,993.11x = 469,187.89 × 187,028.01
  4. Step 4: Simplify right side
    339,993.11x = 87,751,277,382.80
  5. Step 5: Solve for x
    x = 87,751,277,382.80/339,993.11
  6. Step 6: Final answer
    x = 258,097.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.