Question 155859
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:
{{{((450000+x)/(398000)) >= 1.3}}} Solve for x.  Multiply both sides by 398000
{{{450000+x >= 1.3(398000)}}} Simplify.
{{{450000+x >= 517400}}} Subtract 450000 from both sides.
{{{x >= 67400}}}
The company needs to be carrying at least $67,400 in accounts-receivable to keep its acid test ratio at or above 1.3