> Often the speaker will use という to "wrap up" the preceding clause (or sentences) and use it to modify わけ (というわけだ). This doesn't change the usage, and the rules for using という are the same as those for the use of と to mark a quote or thought. This use of という is often used at the beginning of a sentence as a transition:

というわけで、…

So with that, …

This is especially common in TV or radio shows when the host needs to press the show forward or move on to the next topic. The という wraps up the preceding statements into わけ and essentially means, "Now that all this has been said, let's move on." という…