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Finding the Fourth Proportional to 45,249.51, 67,896.87 and 20,307.39

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Solution

The fourth proportional to 45,249.51, 67,896.87 and 20,307.39 is: 30,471.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,249.51 : 67,896.87 = 20,307.39 : x
  2. Step 2: Convert to fraction form
    45,249.51/67,896.87 = 20,307.39/x
  3. Step 3: Cross multiply
    45,249.51x = 67,896.87 × 20,307.39
  4. Step 4: Simplify right side
    45,249.51x = 1,378,808,218.87
  5. Step 5: Solve for x
    x = 1,378,808,218.87/45,249.51
  6. Step 6: Final answer
    x = 30,471.23

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