Finding the Fourth Proportional to 131.36, 196.76 and 107.33
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Solution
The fourth proportional to 131.36, 196.76 and 107.33 is: 160.77
Step by Step Solution
- Step 1: Write the proportion equation
131.36 : 196.76 = 107.33 : x - Step 2: Convert to fraction form
131.36/196.76 = 107.33/x - Step 3: Cross multiply
131.36x = 196.76 × 107.33 - Step 4: Simplify right side
131.36x = 21,117.54 - Step 5: Solve for x
x = 21,117.54/131.36 - Step 6: Final answer
x = 160.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.