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Finding the Fourth Proportional to 78,806.05, 108,752.19 and 42,996.09

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Solution

The fourth proportional to 78,806.05, 108,752.19 and 42,996.09 is: 59,334.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,806.05 : 108,752.19 = 42,996.09 : x
  2. Step 2: Convert to fraction form
    78,806.05/108,752.19 = 42,996.09/x
  3. Step 3: Cross multiply
    78,806.05x = 108,752.19 × 42,996.09
  4. Step 4: Simplify right side
    78,806.05x = 4,675,918,948.94
  5. Step 5: Solve for x
    x = 4,675,918,948.94/78,806.05
  6. Step 6: Final answer
    x = 59,334.52

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