$$69 \sqrt{ \frac{ 91 }{ 9 \times 1 } }$$
$23\sqrt{91}\approx 219.406016326$
$$69\sqrt{\frac{91}{9}}$$
$$69\times \frac{\sqrt{91}}{\sqrt{9}}$$
$$69\times \frac{\sqrt{91}}{3}$$
$$23\sqrt{91}$$
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