Formal writing does not need to be "passive." In fact, the passive voice causes the sentence to be less forceful and takes the emphasis off the subject and puts in on the object. What makes your sentence vague is that we have no idea who the requests of management are fulfilled by! So, who fulfills management requests? The answer to this question becomes the subject of your sentence. Let's assume it is "YOU." If this were the case, you could rewrite the sentence as below:
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