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Finding the Fourth Proportional to 99,704.80, 149,557.20 and 57,714.40

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Solution

The fourth proportional to 99,704.80, 149,557.20 and 57,714.40 is: 86,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,704.80 : 149,557.20 = 57,714.40 : x
  2. Step 2: Convert to fraction form
    99,704.80/149,557.20 = 57,714.40/x
  3. Step 3: Cross multiply
    99,704.80x = 149,557.20 × 57,714.40
  4. Step 4: Simplify right side
    99,704.80x = 8,631,604,063.68
  5. Step 5: Solve for x
    x = 8,631,604,063.68/99,704.80
  6. Step 6: Final answer
    x = 86,571.60

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