38. As shown in the figure, $P$ is a point inside $\triangle A B C$, and lines are drawn through $P$ parallel to the sides of $\triangle A B C$, forming smaller triangles $\triangle E P N$, $\triangle D P M$, and $\triangle T P R$ with areas $4$, $9$, and $49$, respectively. Then the area of $\triangle A B C$ is $\qquad$.
Answer: 144