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Finding the Fourth Proportional to 404,012.70, 606,015.30 and 154,694.70

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Solution

The fourth proportional to 404,012.70, 606,015.30 and 154,694.70 is: 232,040.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,012.70 : 606,015.30 = 154,694.70 : x
  2. Step 2: Convert to fraction form
    404,012.70/606,015.30 = 154,694.70/x
  3. Step 3: Cross multiply
    404,012.70x = 606,015.30 × 154,694.70
  4. Step 4: Simplify right side
    404,012.70x = 93,747,355,028.91
  5. Step 5: Solve for x
    x = 93,747,355,028.91/404,012.70
  6. Step 6: Final answer
    x = 232,040.61

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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.