"Placed in Home of" "Pusto en casa de"

Hello, one of my ancestors, Vicente Richarte, is listed in his 14 Feb 1745 Aguascalientes marriage record to Ma. Josefa Ximenes as being of "padres no conocidos," but placed/puesto in the home of Melchor Richarte.

See:

https://www.familysearch.org/das/v2/3:1:S3HT-DTDQ-F6K/dist.jpg?ctx=CrxCtxPublicAccess&header=Content-Disposition&headerValue=attachment%3B%20filename%3Drecord-image_undefined.jpg

Does this mean that there was likely no biological connection between the child and parent? Is the child in such cases usually an orphan or foundling? Or was this some way of bringing a "natural" biological son into a household?

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Tengo antepasado, Vicente Richarte, de Aguascalientes quien fue de padres "no conocidos," pero quien fue puesto en la casa de Melchor Richarte. Indica esto que Vicente and Melchor no tenian ninguna relacion biologica?