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put this solution on YOUR website!Let the required accounts-receivable be x.
Form the "Acid test" ratio by adding the liquid assets ($450,000) to the accounts-receivable (x) and dividing by the current liabilities ($398,000), and this is to be equal-to-or-greater-than 1.3
Write the inequality:

Solve for x. Multiply both sides by 398000

Simplify.

Subtract 450000 from both sides.

The company needs to be carrying at least $67,400 in accounts-receivable to keep its acid test ratio at or above 1.3