Ardel Co. budgeted to sell 238,000 units of Zbox in September. Production of one unit of Zbox requires two pounds of aluminum and six pounds of steel powder. The beginning inventory and the desired ending inventory are as follows: Zbox Aluminum Steel powder Beginning Inventory 43,000 units 49,000 pounds 45,000 pounds Desired Ending Inventory 32,000 units 42,000 pounds 50,000 pounds How many pounds of steel powder does Ardel Co. need to purchase during September if Ardel plans to manufacture 169,000 units of Zbox in September