Poser uses a much smaller scale than most other 3D modeling programs. You need to adopt an export/import work flow that retains the model's scale and position. If you scale up or move the model in your modeler you will need to scale down and move the model back on export. Do not rely on dragging with the mouse, it will not be accurate enough. Most modelers allow you to input numerical data so use that.

p.s. Got dwarf bread? :)