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Finding the Fourth Proportional to 78,407.28, 117,615.44 and 22,243.04

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Solution

The fourth proportional to 78,407.28, 117,615.44 and 22,243.04 is: 33,365.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,407.28 : 117,615.44 = 22,243.04 : x
  2. Step 2: Convert to fraction form
    78,407.28/117,615.44 = 22,243.04/x
  3. Step 3: Cross multiply
    78,407.28x = 117,615.44 × 22,243.04
  4. Step 4: Simplify right side
    78,407.28x = 2,616,124,936.54
  5. Step 5: Solve for x
    x = 2,616,124,936.54/78,407.28
  6. Step 6: Final answer
    x = 33,365.84

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