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Finding the Fourth Proportional to 115,778.40, 173,677.20 and 36,890.40

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Solution

The fourth proportional to 115,778.40, 173,677.20 and 36,890.40 is: 55,338.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,778.40 : 173,677.20 = 36,890.40 : x
  2. Step 2: Convert to fraction form
    115,778.40/173,677.20 = 36,890.40/x
  3. Step 3: Cross multiply
    115,778.40x = 173,677.20 × 36,890.40
  4. Step 4: Simplify right side
    115,778.40x = 6,407,021,378.88
  5. Step 5: Solve for x
    x = 6,407,021,378.88/115,778.40
  6. Step 6: Final answer
    x = 55,338.66

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