Let's solve the given problem step-by-step:
### Part (i):
We need to add the following numbers:
- 38.76
- 132.8
- 19.082
Step 1: Write down the numbers aligned by their decimal points.
```
38.760
132.800
+ 19.082
---------
```
Step 2: Add the numbers column by column from right to left.
```
38.760
132.800
+ 19.082
---------
190.642
```
The sum of 38.76, 132.8, and 19.082 is 190.642.
### Part (iii):
We need to add the following numbers:
- 19.04
- 360.8
- 0.0341
Step 1: Write down the numbers aligned by their decimal points.
```
019.0400
360.8000
+ 000.0341
---------
```
Step 2: Add the numbers column by column from right to left.
```
019.0400
360.8000
+ 000.0341
---------
379.8741
```
The sum of 19.04, 360.8, and 0.0341 is 379.8741.
### Summary:
- The sum of 38.76, 132.8, and 19.082 is 190.642.
- The sum of 19.04, 360.8, and 0.0341 is 379.8741.