To find the volume of the cylinder using the approximation \(\pi \approx 3.14\), we start with the given volume in terms of \(\pi\):
\[ \text{Volume} = 144\pi , \text{cm}^3 \]
Now, substituting \( \pi \) with \( 3.14 \):
\[ \text{Volume} \approx 144 \times 3.14 \]
Now, calculating that:
\[ 144 \times 3.14 = 452.16 \text{ cm}^3 \]
Therefore, the decimal approximation of the volume of the cylinder is:
\[ \approx 452.16 , \text{cm}^3 \]