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Finding the Fourth Proportional to 78,550.43, 117,807.89 and 22,389.33

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Solution

The fourth proportional to 78,550.43, 117,807.89 and 22,389.33 is: 33,578.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,550.43 : 117,807.89 = 22,389.33 : x
  2. Step 2: Convert to fraction form
    78,550.43/117,807.89 = 22,389.33/x
  3. Step 3: Cross multiply
    78,550.43x = 117,807.89 × 22,389.33
  4. Step 4: Simplify right side
    78,550.43x = 2,637,639,725.81
  5. Step 5: Solve for x
    x = 2,637,639,725.81/78,550.43
  6. Step 6: Final answer
    x = 33,578.93

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