Let's denote the unknown number as \( x \). According to your description, the product of that number and two hundred decreased by seventy-four can be expressed mathematically as:
\[ 200x - 74 \]
This expression can be used in various contexts, such as setting it equal to another value or using it in an equation depending on what you need. If you have a specific problem or context in mind, please provide more details!
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