With no adjustable parameters the ground-state properties of the spin-polarized bosonic fluids H down arrow and T down arrow are obtained via quantum thermodynamic perturbation theory. Here, perturbations are developed around the corresponding repulsive-sphere gas. The attractive and repulsive portions of the interatomic interaction potential (Lennard-Jones and Kolos-Wolniewicz) are decomposed as proposed by Barker and Henderson and by Weeks, Chandler and Anderson. The various density series for the energy are extrapolated, order by order, to physical densities via Pade and related approximants. The pressure and the sound velocity curves can be obtained from the energy. The difference between our results and variational results is only significant at higher densities, where our energy curves generally lie lower.