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Finding the Fourth Proportional to 77,191.98, 115,727.48 and 30,479.82

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Solution

The fourth proportional to 77,191.98, 115,727.48 and 30,479.82 is: 45,695.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,191.98 : 115,727.48 = 30,479.82 : x
  2. Step 2: Convert to fraction form
    77,191.98/115,727.48 = 30,479.82/x
  3. Step 3: Cross multiply
    77,191.98x = 115,727.48 × 30,479.82
  4. Step 4: Simplify right side
    77,191.98x = 3,527,352,028.42
  5. Step 5: Solve for x
    x = 3,527,352,028.42/77,191.98
  6. Step 6: Final answer
    x = 45,695.84

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