Finding the Fourth Proportional to 190,694.16, 263,163.87 and 105,819.12
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Solution
The fourth proportional to 190,694.16, 263,163.87 and 105,819.12 is: 146,033.68
Step by Step Solution
- Step 1: Write the proportion equation
190,694.16 : 263,163.87 = 105,819.12 : x - Step 2: Convert to fraction form
190,694.16/263,163.87 = 105,819.12/x - Step 3: Cross multiply
190,694.16x = 263,163.87 × 105,819.12 - Step 4: Simplify right side
190,694.16x = 27,847,769,139.19 - Step 5: Solve for x
x = 27,847,769,139.19/190,694.16 - Step 6: Final answer
x = 146,033.68
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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.