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Finding the Fourth Proportional to 202,538.06, 303,843.99 and 69,431.76

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Solution

The fourth proportional to 202,538.06, 303,843.99 and 69,431.76 is: 104,160.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,538.06 : 303,843.99 = 69,431.76 : x
  2. Step 2: Convert to fraction form
    202,538.06/303,843.99 = 69,431.76/x
  3. Step 3: Cross multiply
    202,538.06x = 303,843.99 × 69,431.76
  4. Step 4: Simplify right side
    202,538.06x = 21,096,422,991.12
  5. Step 5: Solve for x
    x = 21,096,422,991.12/202,538.06
  6. Step 6: Final answer
    x = 104,160.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.