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Finding the Fourth Proportional to 78,753.99, 108,678.10 and 42,944.70

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Solution

The fourth proportional to 78,753.99, 108,678.10 and 42,944.70 is: 59,262.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,753.99 : 108,678.10 = 42,944.70 : x
  2. Step 2: Convert to fraction form
    78,753.99/108,678.10 = 42,944.70/x
  3. Step 3: Cross multiply
    78,753.99x = 108,678.10 × 42,944.70
  4. Step 4: Simplify right side
    78,753.99x = 4,667,148,401.07
  5. Step 5: Solve for x
    x = 4,667,148,401.07/78,753.99
  6. Step 6: Final answer
    x = 59,262.37

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