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Finding the Fourth Proportional to 78,804.05, 108,749.22 and 42,993.95

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Solution

The fourth proportional to 78,804.05, 108,749.22 and 42,993.95 is: 59,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804.05 : 108,749.22 = 42,993.95 : x
  2. Step 2: Convert to fraction form
    78,804.05/108,749.22 = 42,993.95/x
  3. Step 3: Cross multiply
    78,804.05x = 108,749.22 × 42,993.95
  4. Step 4: Simplify right side
    78,804.05x = 4,675,557,983.47
  5. Step 5: Solve for x
    x = 4,675,557,983.47/78,804.05
  6. Step 6: Final answer
    x = 59,331.45

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