Finding the Fourth Proportional to 126,621.20, 174,807.24 and 84,242
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Solution
The fourth proportional to 126,621.20, 174,807.24 and 84,242 is: 116,300.52
Step by Step Solution
- Step 1: Write the proportion equation
126,621.20 : 174,807.24 = 84,242 : x - Step 2: Convert to fraction form
126,621.20/174,807.24 = 84,242/x - Step 3: Cross multiply
126,621.20x = 174,807.24 × 84,242 - Step 4: Simplify right side
126,621.20x = 14,726,111,512.08 - Step 5: Solve for x
x = 14,726,111,512.08/126,621.20 - Step 6: Final answer
x = 116,300.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.