First, we need to calculate the sustainable growth rate (SGR) using the following formula:
SGR = PM * TAT * (1 - D/E)
SGR = 0.055 * 1.74 * (1 - 0.4)
SGR = 0.055 * 1.74 * 0.6
SGR = 0.0573
Now, we can calculate the dividend payout ratio using the growth rate (g) and the sustainable growth rate (SGR):
Dividend Payout Ratio = (g - SGR) / g
Dividend Payout Ratio = (0.12 - 0.0573) / 0.12
Dividend Payout Ratio ≈ 0.5242
So, the dividend payout ratio is approximately 52.42%.