Final answer:
Less than 30% of the Ariaal likely live in towns, based on the provided data indicating that in poorer regions of Africa, about 30% of the population lives in urban areas.
Step-by-step explanation:
The proportion of the Ariaal population living in urban areas is not explicitly mentioned in the provided information. However, it is important to note the general trend observed in poorer regions of the world, particularly in Africa, where the urban population constitutes about 30% of the total. This indicates that considering the Ariaal as part of the African context, it is likely that less than 30% of the Ariaal now live in towns. The Ariaal people's adaptation to urban life could have been influenced by factors such as the rural-to-urban shift driven by industrialization and the search for employment opportunities in urban areas.