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Finding the Fourth Proportional to 106,995.12, 147,640.66 and 61,672.56

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Solution

The fourth proportional to 106,995.12, 147,640.66 and 61,672.56 is: 85,100.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,995.12 : 147,640.66 = 61,672.56 : x
  2. Step 2: Convert to fraction form
    106,995.12/147,640.66 = 61,672.56/x
  3. Step 3: Cross multiply
    106,995.12x = 147,640.66 × 61,672.56
  4. Step 4: Simplify right side
    106,995.12x = 9,105,377,462.29
  5. Step 5: Solve for x
    x = 9,105,377,462.29/106,995.12
  6. Step 6: Final answer
    x = 85,100.87

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