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Finding the Fourth Proportional to 78,970.44, 108,978.96 and 43,160.43

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Solution

The fourth proportional to 78,970.44, 108,978.96 and 43,160.43 is: 59,561.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,970.44 : 108,978.96 = 43,160.43 : x
  2. Step 2: Convert to fraction form
    78,970.44/108,978.96 = 43,160.43/x
  3. Step 3: Cross multiply
    78,970.44x = 108,978.96 × 43,160.43
  4. Step 4: Simplify right side
    78,970.44x = 4,703,578,774.55
  5. Step 5: Solve for x
    x = 4,703,578,774.55/78,970.44
  6. Step 6: Final answer
    x = 59,561.26

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