Finding the Fourth Proportional to 191,170.92, 263,808.98 and 105,129.18
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Solution
The fourth proportional to 191,170.92, 263,808.98 and 105,129.18 is: 145,074.48
Step by Step Solution
- Step 1: Write the proportion equation
191,170.92 : 263,808.98 = 105,129.18 : x - Step 2: Convert to fraction form
191,170.92/263,808.98 = 105,129.18/x - Step 3: Cross multiply
191,170.92x = 263,808.98 × 105,129.18 - Step 4: Simplify right side
191,170.92x = 27,734,021,744.04 - Step 5: Solve for x
x = 27,734,021,744.04/191,170.92 - Step 6: Final answer
x = 145,074.48
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1.5x scale
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.