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The Green Carpet has net working capital of $ 700,000. If current liabilities of $50,000, accounts receivable of $125,000, inventory of $ 400,000, total assets of $ 700,000, net fixed assets of $500,000, and the owners' equity has a book value of $300,000. What is the amount of the cash balance on the account? Assume that cash, accounts receivable, and inventory are the only current asset items on the books.