Resting membrane potential in cells
This is only true because the chloride concentration happens to be slightly less negative than potassium, therefore the weighted (by permeability) average of all the other ions is near the reversal potential for chloride.

Even if you assume the permeability of every ion except sodium and potassium is zero (i.e., if chloride doesn't contribute at all), you will end up with a resting potential near chloride's reversal potential.