The coordinates of existing facilities and the weights w$.$r$.$t$.$ two new facilities are given as follows: Existing facilities $($ai$,$bi$)1(0,10)2(15,0)3(25,30)4(40,15)$ w$1110$ w$126$ w$130$ w$140$ w$210$ w$222$ w$2316$ w$248$ v$1212$