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Finding the Fourth Proportional to 59,040.80, 88,561.20 and 55,815.20

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Solution

The fourth proportional to 59,040.80, 88,561.20 and 55,815.20 is: 83,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,040.80 : 88,561.20 = 55,815.20 : x
  2. Step 2: Convert to fraction form
    59,040.80/88,561.20 = 55,815.20/x
  3. Step 3: Cross multiply
    59,040.80x = 88,561.20 × 55,815.20
  4. Step 4: Simplify right side
    59,040.80x = 4,943,061,090.24
  5. Step 5: Solve for x
    x = 4,943,061,090.24/59,040.80
  6. Step 6: Final answer
    x = 83,722.80

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