Finding the Fourth Proportional to 216,613.39, 324,424.25 and 132,187.68
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Solution
The fourth proportional to 216,613.39, 324,424.25 and 132,187.68 is: 197,978.94
Step by Step Solution
- Step 1: Write the proportion equation
216,613.39 : 324,424.25 = 132,187.68 : x - Step 2: Convert to fraction form
216,613.39/324,424.25 = 132,187.68/x - Step 3: Cross multiply
216,613.39x = 324,424.25 × 132,187.68 - Step 4: Simplify right side
216,613.39x = 42,884,888,943.24 - Step 5: Solve for x
x = 42,884,888,943.24/216,613.39 - Step 6: Final answer
x = 197,978.94
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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.