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Finding the Fourth Proportional to 52,586.10, 78,879.15 and 31,850.10

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Solution

The fourth proportional to 52,586.10, 78,879.15 and 31,850.10 is: 47,775.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,586.10 : 78,879.15 = 31,850.10 : x
  2. Step 2: Convert to fraction form
    52,586.10/78,879.15 = 31,850.10/x
  3. Step 3: Cross multiply
    52,586.10x = 78,879.15 × 31,850.10
  4. Step 4: Simplify right side
    52,586.10x = 2,512,308,815.42
  5. Step 5: Solve for x
    x = 2,512,308,815.42/52,586.10
  6. Step 6: Final answer
    x = 47,775.15

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