In a mathematics competition, the average score of Wang Dong, Li Xin, and Liu Li was 86 points. It is known that Wang Dong's score is 4 points less than Li Xin's, and the ratio of Li Xin's and Liu Li's scores is 43:45. How many points did Wang Dong score in the competition?
在一次数学竞赛中，王冬、李欣、刘力三人的平均成绩是86分，已知王冬的分数比李欣少4分，李欣与刘力分数的比是43：45，这次数学竞赛王冬得了多少分？
<gadget id="calculator">86 * 3</gadget>
<output>258</output>

<gadget id="calculator">4 + 258</gadget>
<output>262</output>

<gadget id="calculator">43 + 45 + 43</gadget>
<output>131</output>

<gadget id="calculator">262 / 131</gadget>
<output>2</output>

<gadget id="calculator">43 * 2</gadget>
<output>86</output>

<gadget id="calculator">86 - 4</gadget>
<output>82</output>

<result>82</result>