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Finding the Fourth Proportional to 203,065.43, 304,594.05 and 69,942.74

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Solution

The fourth proportional to 203,065.43, 304,594.05 and 69,942.74 is: 104,912.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,065.43 : 304,594.05 = 69,942.74 : x
  2. Step 2: Convert to fraction form
    203,065.43/304,594.05 = 69,942.74/x
  3. Step 3: Cross multiply
    203,065.43x = 304,594.05 × 69,942.74
  4. Step 4: Simplify right side
    203,065.43x = 21,304,140,921.73
  5. Step 5: Solve for x
    x = 21,304,140,921.73/203,065.43
  6. Step 6: Final answer
    x = 104,912.69

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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.