A tube dilution series is performed on a sample to check the pipetting skills of a medical laboratory technician student. Five tubes are used in the dilution. The concentration of the sample is 1650 mg/dL. The sample is diluted 1/5 (tube 1), rediluted 1/2 (tube 2), diluted again 1/4 (tube 3), then diluted 1/5 (tube 4), and then diluted 1/10 (tube 5). After the student performs the dilution, the diluted specimen will be analyzed, and the student will be graded for precision of pipetting. What will be the diluted concentration in each tube? Please explain step by step how you reached your final answer.