SOLUTION
Given the question in the question tab, the following solution steps help get the number of students of fourth grade class.
Step 1: Write the number of students in each class
![n_{\text{students per class}}=23](https://img.qammunity.org/2023/formulas/mathematics/college/wkzytt9mispto2nnb78sp8q7f1e6wdppt1.png)
Step 2: State the number of fourth grade classes
![n_{4th\text{ grade classes}}=6](https://img.qammunity.org/2023/formulas/mathematics/college/yor6qaeainjtwkufd9hy5nvvv0cbdqbu70.png)
Step 3: Calculate the number of fourth grade students in all
![\begin{gathered} n_{4th\text{ grade students}}=n_{4th\text{ grade classes}}* n_{\text{students per class}} \\ n_{4th\text{ grade students}}=23*6=138\text{ students} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/nzngdcpsbwdauk737kegil31jaoyhesj1i.png)
Hence, the number of fourth grade students in all is about 138 students
I solved this by finding the product of the number of students in each class and the number of fourth grade classes