Picnic Fruit Punch

Picnic Fruit Punch (From Taste of Home)
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2 quarts cranberry juice
3 cups pineapple juice
3 cups orange juice
1/4 cup lemon juice
1 liter ginger ale, chilled
1 medium navel orange, sliced
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Combine the juices in a large container. Refrigerate. Just before serving, stir in ginger ale and orange slices.