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Finding the Fourth Proportional to 115,499.80, 173,390.10 and 73,379.80

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Solution

The fourth proportional to 115,499.80, 173,390.10 and 73,379.80 is: 110,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,499.80 : 173,390.10 = 73,379.80 : x
  2. Step 2: Convert to fraction form
    115,499.80/173,390.10 = 73,379.80/x
  3. Step 3: Cross multiply
    115,499.80x = 173,390.10 × 73,379.80
  4. Step 4: Simplify right side
    115,499.80x = 12,723,330,859.98
  5. Step 5: Solve for x
    x = 12,723,330,859.98/115,499.80
  6. Step 6: Final answer
    x = 110,158.90

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