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Finding the Fourth Proportional to 78,651.08, 108,540.15 and 42,841

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Solution

The fourth proportional to 78,651.08, 108,540.15 and 42,841 is: 59,121.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,651.08 : 108,540.15 = 42,841 : x
  2. Step 2: Convert to fraction form
    78,651.08/108,540.15 = 42,841/x
  3. Step 3: Cross multiply
    78,651.08x = 108,540.15 × 42,841
  4. Step 4: Simplify right side
    78,651.08x = 4,649,968,566.15
  5. Step 5: Solve for x
    x = 4,649,968,566.15/78,651.08
  6. Step 6: Final answer
    x = 59,121.48

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