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Finding the Fourth Proportional to 57,007.13, 78,674.69 and 31,861.49

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Solution

The fourth proportional to 57,007.13, 78,674.69 and 31,861.49 is: 43,971.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,007.13 : 78,674.69 = 31,861.49 : x
  2. Step 2: Convert to fraction form
    57,007.13/78,674.69 = 31,861.49/x
  3. Step 3: Cross multiply
    57,007.13x = 78,674.69 × 31,861.49
  4. Step 4: Simplify right side
    57,007.13x = 2,506,692,534.97
  5. Step 5: Solve for x
    x = 2,506,692,534.97/57,007.13
  6. Step 6: Final answer
    x = 43,971.57

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