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Finding the Fourth Proportional to 74,068.85, 111,165.49 and 31,980.74

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Solution

The fourth proportional to 74,068.85, 111,165.49 and 31,980.74 is: 47,997.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,068.85 : 111,165.49 = 31,980.74 : x
  2. Step 2: Convert to fraction form
    74,068.85/111,165.49 = 31,980.74/x
  3. Step 3: Cross multiply
    74,068.85x = 111,165.49 × 31,980.74
  4. Step 4: Simplify right side
    74,068.85x = 3,555,154,632.66
  5. Step 5: Solve for x
    x = 3,555,154,632.66/74,068.85
  6. Step 6: Final answer
    x = 47,997.98

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