The product of the first and the third terms of an arithmetic sequence is $5$. If all terms of the sequence are positive integers, what is the fourth term?
Question:
The product of the first and the third terms of an arithmetic sequence is $5$. If all terms of the sequence are positive integers, what is the fourth term?
Answer:
Let's think step by step.

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The product of the first and the third terms of an arithmetic sequence is $5$. If all terms of the sequence are positive integers, what is the fourth term?
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