Given the following shapes: a right_triangle with base 5 and height 6, a rectangle with width 9 and height 4, a right_triangle with base 4 and height 5, a right_triangle with base 9 and height 3. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 5 and height 6: Area = 0.5 x 5 x 6 = 15.0
Rectangle with width 9 and height 4: Area = 9 x 4 = 36
Right triangle with base 4 and height 5: Area = 0.5 x 4 x 5 = 10.0
Right triangle with base 9 and height 3: Area = 0.5 x 9 x 3 = 13.5</think>

<answer>74</answer>