Zhang Qiujian Suanjing/Examples

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Examples of Problems from Zhang Qiujian Suanjing by Zhang Qiujian

Example $1$

A man, who had stolen a horse, rode away on its back.
When he had gone $37$ miles, the owner discovered the theft and pursued the thief for $145$ miles;
then he returned, believing himself unable to overtake him.
When he turned back, the thief was riding $23$ miles ahead of him;
if he had continued the pursuit without coming back, in how many further miles would he have overtaken him?