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Finding the Fourth Proportional to 75,693.72, 113,553.94 and 31,295.60

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Solution

The fourth proportional to 75,693.72, 113,553.94 and 31,295.60 is: 46,948.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,693.72 : 113,553.94 = 31,295.60 : x
  2. Step 2: Convert to fraction form
    75,693.72/113,553.94 = 31,295.60/x
  3. Step 3: Cross multiply
    75,693.72x = 113,553.94 × 31,295.60
  4. Step 4: Simplify right side
    75,693.72x = 3,553,738,116.89
  5. Step 5: Solve for x
    x = 3,553,738,116.89/75,693.72
  6. Step 6: Final answer
    x = 46,948.92

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