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The heating element of a water heater in an apartment building has a maximum power output of 32 kW. Four residents of the building take showers at the similar time, and each receives heated water at a volume flow rate of 18 x 10^-5 m³/s. If the water going into the heater has a temperature of 19°C, find the maximum possible temperature of the hot water that each showering resident receives?

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