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Finding the Fourth Proportional to 140,185.59, 193,454.79 and 86,449.11

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Solution

The fourth proportional to 140,185.59, 193,454.79 and 86,449.11 is: 119,298.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,185.59 : 193,454.79 = 86,449.11 : x
  2. Step 2: Convert to fraction form
    140,185.59/193,454.79 = 86,449.11/x
  3. Step 3: Cross multiply
    140,185.59x = 193,454.79 × 86,449.11
  4. Step 4: Simplify right side
    140,185.59x = 16,723,994,420.74
  5. Step 5: Solve for x
    x = 16,723,994,420.74/140,185.59
  6. Step 6: Final answer
    x = 119,298.96

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