2523 50 | ( | 1 | + | a | ) | × | 113 100 | = | 67999 1000 |
| 方程左边 = | 285099 5000 | ( | 1 | + | a | ) |
285099 5000 | ( | 1 | + | a | ) | = | 67999 1000 |
| 方程左边 = | 285099 5000 | × | 1 | + | 285099 5000 | a |
| = | 285099 5000 | + | 285099 5000 | a |
285099 5000 | + | 285099 5000 | a | = | 67999 1000 |
285099 5000 | a | = | 67999 1000 | − | 285099 5000 |
285099 5000 | a | = | 6862 625 |
| a | = | 6862 625 | ÷ | 285099 5000 |
| = | 6862 625 | × | 5000 285099 |
| = | 6862 | × | 8 285099 |
| a | = | 54896 285099 |
| a | = | 0.192551 |