In a ∆PQR, I, O and H are incenter, circumcenter and orthocenter, respectively. If ∠Q = 48°, then find the value of ∠PIR : ∠POR : ∠PHR. 

1
19 : 16 : 22
2
3 : 2 : 5
3
9 : 6 : 11
4
11 : 16 : 21

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