Final answer:
The provided information did not directly answer why Will needed to earn fifty dollars; however, the concept of paying bride wealth or debts for matrimonial obligations can relate to the need for earning a specific sum, like $50, in certain cultural contexts.
Step-by-step explanation:
The reason why Will needed to earn fifty dollars is not specified within the provided context.
However, based on the general practices and the context given, it is possible that the need for money could be related to traditional practices like paying a portion of the bride wealth prior to a marriage ceremony, which is mentioned in the reference information.
Traditionally, this would put the groom in respectful debt to the bride's family. The information provided does not directly connect to the options given in the question, which include buying a wedding ring, buying a farm, entering a dance competition, or paying off a debt.
In some cultural contexts, earning money to pay for matrimonial expenses or settling debts is culturally significant and can be related to ensuring the legitimacy and respect within a marriage contract.