For the purpose of assessing and levying taxes in the city for all purposes other than city taxes, the city shall be considered the same as a township and except as otherwise provided in this charter, all provisions of state law relative to the collection of such taxes, the accounting therefore to the appropriate taxing units, and the returning of delinquent taxes to the county treasurer for collection, shall apply, and the city treasurer shall have all of the powers and duties in connection therewith as township treasurers have.