An analyst produces the following series of annual dividend forecasts for company A: Expected dividend (end of) year t+1 = 10; Expected dividend (end of) year t+2 = 20; Expected dividend (end of) year t+3 = 10. The analyst further expects that company As dividends will be zero after year t+3. Company As cost of equity equals 10 percent. Under these assumptions, determine the analysts estimate of company As equity value at the end of year t.