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Finding the Fourth Proportional to 203,054.26, 304,601.79 and 69,916.90

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Solution

The fourth proportional to 203,054.26, 304,601.79 and 69,916.90 is: 104,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,054.26 : 304,601.79 = 69,916.90 : x
  2. Step 2: Convert to fraction form
    203,054.26/304,601.79 = 69,916.90/x
  3. Step 3: Cross multiply
    203,054.26x = 304,601.79 × 69,916.90
  4. Step 4: Simplify right side
    203,054.26x = 21,296,812,891.25
  5. Step 5: Solve for x
    x = 21,296,812,891.25/203,054.26
  6. Step 6: Final answer
    x = 104,882.37

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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.