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Finding the Fourth Proportional to 98,466.87, 147,663.83 and 77,447.78

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Solution

The fourth proportional to 98,466.87, 147,663.83 and 77,447.78 is: 116,142.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,466.87 : 147,663.83 = 77,447.78 : x
  2. Step 2: Convert to fraction form
    98,466.87/147,663.83 = 77,447.78/x
  3. Step 3: Cross multiply
    98,466.87x = 147,663.83 × 77,447.78
  4. Step 4: Simplify right side
    98,466.87x = 11,436,234,694.24
  5. Step 5: Solve for x
    x = 11,436,234,694.24/98,466.87
  6. Step 6: Final answer
    x = 116,142.97

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