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Finding the Fourth Proportional to 78,054.73, 107,715.84 and 42,244.73

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Solution

The fourth proportional to 78,054.73, 107,715.84 and 42,244.73 is: 58,297.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,054.73 : 107,715.84 = 42,244.73 : x
  2. Step 2: Convert to fraction form
    78,054.73/107,715.84 = 42,244.73/x
  3. Step 3: Cross multiply
    78,054.73x = 107,715.84 × 42,244.73
  4. Step 4: Simplify right side
    78,054.73x = 4,550,426,577.52
  5. Step 5: Solve for x
    x = 4,550,426,577.52/78,054.73
  6. Step 6: Final answer
    x = 58,297.90

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