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Finding the Fourth Proportional to 78,654.78, 108,543.88 and 42,844.44

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Solution

The fourth proportional to 78,654.78, 108,543.88 and 42,844.44 is: 59,125.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,654.78 : 108,543.88 = 42,844.44 : x
  2. Step 2: Convert to fraction form
    78,654.78/108,543.88 = 42,844.44/x
  3. Step 3: Cross multiply
    78,654.78x = 108,543.88 × 42,844.44
  4. Step 4: Simplify right side
    78,654.78x = 4,650,501,754.03
  5. Step 5: Solve for x
    x = 4,650,501,754.03/78,654.78
  6. Step 6: Final answer
    x = 59,125.48

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