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Finding the Fourth Proportional to 78,909.84, 108,897.96 and 43,101.78

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Solution

The fourth proportional to 78,909.84, 108,897.96 and 43,101.78 is: 59,481.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,909.84 : 108,897.96 = 43,101.78 : x
  2. Step 2: Convert to fraction form
    78,909.84/108,897.96 = 43,101.78/x
  3. Step 3: Cross multiply
    78,909.84x = 108,897.96 × 43,101.78
  4. Step 4: Simplify right side
    78,909.84x = 4,693,695,914.37
  5. Step 5: Solve for x
    x = 4,693,695,914.37/78,909.84
  6. Step 6: Final answer
    x = 59,481.76

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