{"type":"rich","version":"1.0","title":"Ratio of A : B : C = 9 : 4 : 3","html":"<iframe src=\"https://www.desmos.com/calculator/5ck1kv4ibj?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}