To identify the outlier sentence, evaluate the thematic consistency of the statements.
The sentences predominantly address the distinctive attributes of Chinese business institutions, their curricula adapted for local requirements, and their allure for individuals interested in the Chinese commercial landscape.
Sentence 3, concerning Western institutions and dual degrees, deviates substantially from the other sentences, which concentrate on the Chinese milieu. Its subject matter concerns Western institutions' provisions rather than the unique characteristics or attraction of Chinese business schools.
Therefore, the sentence that does not belong in the sequence is:
"Western institutions have augmented their academic provisions with dual degrees, which are favored by both local and international students, thereby enhancing the reputation of their Chinese collaborators."