Final answer:
To find the total number of registered doctors, use the given percentage of female doctors and the number of female doctors to set up a proportion. Solve this proportion to calculate the total number of doctors as approximately 223,711.
Step-by-step explanation:
To calculate the total number of registered doctors, we can use the percentage of female doctors and the number of female doctors provided. If 19.4% of all registered doctors were female and there were 43,400 female doctors, we can set up a proportion:
19.4 / 100 = 43,400 / Total number of doctors
By cross-multiplying, we get:
19.4 × (Total number of doctors) = 43,400 × 100
Total number of doctors = (43,400 × 100) / 19.4
Total number of doctors = 223,711 (rounded to nearest whole number)
Therefore, the total number of registered doctors that year was approximately 223,711.