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Finding the Fourth Proportional to 74,810.53, 103,231.11 and 52,198.12

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Solution

The fourth proportional to 74,810.53, 103,231.11 and 52,198.12 is: 72,028.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,810.53 : 103,231.11 = 52,198.12 : x
  2. Step 2: Convert to fraction form
    74,810.53/103,231.11 = 52,198.12/x
  3. Step 3: Cross multiply
    74,810.53x = 103,231.11 × 52,198.12
  4. Step 4: Simplify right side
    74,810.53x = 5,388,469,867.51
  5. Step 5: Solve for x
    x = 5,388,469,867.51/74,810.53
  6. Step 6: Final answer
    x = 72,028.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.