If \( \dfrac{1}{1^4} + \dfrac{1}{2^4} + \dfrac{1}{3^4} + \ldots \infty = \dfrac{\pi^4}{90} \), \( \dfrac{1}{1^4} + \dfrac{1}{3^4} + \dfrac{1}{5^4} + \ldots \infty = \alpha \), \( \dfrac{1}{2^4} + \dfrac{1}{4^4} + \dfrac{1}{6^4} + \ldots \infty = \beta \), then \( \dfrac{\alpha}{\beta} \) is equal to:
