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Finding the Fourth Proportional to 78,819.79, 108,771.59 and 43,010.59

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Solution

The fourth proportional to 78,819.79, 108,771.59 and 43,010.59 is: 59,354.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,819.79 : 108,771.59 = 43,010.59 : x
  2. Step 2: Convert to fraction form
    78,819.79/108,771.59 = 43,010.59/x
  3. Step 3: Cross multiply
    78,819.79x = 108,771.59 × 43,010.59
  4. Step 4: Simplify right side
    78,819.79x = 4,678,330,261.14
  5. Step 5: Solve for x
    x = 4,678,330,261.14/78,819.79
  6. Step 6: Final answer
    x = 59,354.77

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