Final answer:
The railroads in Latin America were built with the help of European and U.S. banks, who provided money for construction projects. The necessary railroad equipment and building materials were imported from Europe. Migrants from China also played a significant role in constructing railroads in Latin America.
Step-by-step explanation:
The railroads in Latin America were built with the help of various forces. European and U.S. banks provided money for construction projects, while the necessary railroad equipment and building materials were imported from Europe. Additionally, migrants from China played a significant role in constructing railroads in countries like Cuba and Mexico.