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Finding the Fourth Proportional to 103,965.96, 143,469.80 and 58,643.28

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Solution

The fourth proportional to 103,965.96, 143,469.80 and 58,643.28 is: 80,925.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,965.96 : 143,469.80 = 58,643.28 : x
  2. Step 2: Convert to fraction form
    103,965.96/143,469.80 = 58,643.28/x
  3. Step 3: Cross multiply
    103,965.96x = 143,469.80 × 58,643.28
  4. Step 4: Simplify right side
    103,965.96x = 8,413,539,359.73
  5. Step 5: Solve for x
    x = 8,413,539,359.73/103,965.96
  6. Step 6: Final answer
    x = 80,925.90

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