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Finding the Fourth Proportional to 78,825.99, 108,782.18 and 43,018.30

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Solution

The fourth proportional to 78,825.99, 108,782.18 and 43,018.30 is: 59,366.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,825.99 : 108,782.18 = 43,018.30 : x
  2. Step 2: Convert to fraction form
    78,825.99/108,782.18 = 43,018.30/x
  3. Step 3: Cross multiply
    78,825.99x = 108,782.18 × 43,018.30
  4. Step 4: Simplify right side
    78,825.99x = 4,679,624,453.89
  5. Step 5: Solve for x
    x = 4,679,624,453.89/78,825.99
  6. Step 6: Final answer
    x = 59,366.52

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