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Finding the Fourth Proportional to 209,199.39, 313,791.80 and 67,042.58

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Solution

The fourth proportional to 209,199.39, 313,791.80 and 67,042.58 is: 100,561.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,199.39 : 313,791.80 = 67,042.58 : x
  2. Step 2: Convert to fraction form
    209,199.39/313,791.80 = 67,042.58/x
  3. Step 3: Cross multiply
    209,199.39x = 313,791.80 × 67,042.58
  4. Step 4: Simplify right side
    209,199.39x = 21,037,409,950.67
  5. Step 5: Solve for x
    x = 21,037,409,950.67/209,199.39
  6. Step 6: Final answer
    x = 100,561.53

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