Arestaurant makes a special citrus dressing for its salads. here is how the ingredients are mixed: 1/2 of the mixture is oil, 1/6 of the mixture is vinegar, 1/4 of the mixture is orange juice, and 1/4 of the mixture is lemon juice. when the ingredients are mixed in the same ratio as shown above, every batch of dressing tastes the same. a new batch of dressing has 1 cup of oil. how much vinegar, orange juice, and lemon juice is needed for the dressing to taste the same?