This is the 2149th most frequent Polish word.
podobnej
The Polish word "podobnej" means "similar" in English (feminine singular genitive or dative form).
Here, "podobnej" refers to similarity in price between two items, making it an adjective describing the noun "cenie" (price).
Mam kurtkę w podobnej cenie.
I have a jacket at a similar price.
In this case, "podobnej" describes the situation, indicating that it resembles another one.
Widziałem ją w podobnej sytuacji.
I saw her in a similar situation.
Here, "podobnej" modifies "atmosfery" (atmosphere), conveying a resemblance between atmospheres of two places.