In an industrial application a noise source, that can be considered to be a point source, has noise power level $108$dB$.$ Noise pressure level from another source considered to be a line has been measured to be $86$dB at a distance of $5$ meters from the source.

Both sources are near a hard surface. Reflections and other phenomena are not considered.

Do a theoretical calculation on what the noise level will be in a location that is at distance $42$m from the point source and at a distance $69$m from the line source. Give your answer with accuracy of one decimal place $($rounded$).$