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Finding the Fourth Proportional to 74,709.42, 103,109.97 and 49,211.70

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Solution

The fourth proportional to 74,709.42, 103,109.97 and 49,211.70 is: 67,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,709.42 : 103,109.97 = 49,211.70 : x
  2. Step 2: Convert to fraction form
    74,709.42/103,109.97 = 49,211.70/x
  3. Step 3: Cross multiply
    74,709.42x = 103,109.97 × 49,211.70
  4. Step 4: Simplify right side
    74,709.42x = 5,074,216,910.65
  5. Step 5: Solve for x
    x = 5,074,216,910.65/74,709.42
  6. Step 6: Final answer
    x = 67,919.37

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