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Finding the Fourth Proportional to 203,471.49, 304,897.39 and 103,481.85

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Solution

The fourth proportional to 203,471.49, 304,897.39 and 103,481.85 is: 155,065.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,471.49 : 304,897.39 = 103,481.85 : x
  2. Step 2: Convert to fraction form
    203,471.49/304,897.39 = 103,481.85/x
  3. Step 3: Cross multiply
    203,471.49x = 304,897.39 × 103,481.85
  4. Step 4: Simplify right side
    203,471.49x = 31,551,345,977.37
  5. Step 5: Solve for x
    x = 31,551,345,977.37/203,471.49
  6. Step 6: Final answer
    x = 155,065.19

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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.