Final answer:
The question does not provide relevant information to answer the specific request for determining the parameters related to retaining walls and dams.
Step-by-step explanation:
The given question is regarding the calculation of various parameters related to retaining walls and dams in different scenarios. Unfortunately, the information provided in the question is not directly related to the question asked for determining the active Rankine lateral earth pressure for backfill, hydrostatic pressure, total resultant lateral force, and the location of the resultant force. Therefore, it is not possible to provide a specific answer to the question asked.