Finding the Fourth Proportional to 191,939.74, 287,909.57 and 103,070.99
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Solution
The fourth proportional to 191,939.74, 287,909.57 and 103,070.99 is: 154,606.47
Step by Step Solution
- Step 1: Write the proportion equation
191,939.74 : 287,909.57 = 103,070.99 : x - Step 2: Convert to fraction form
191,939.74/287,909.57 = 103,070.99/x - Step 3: Cross multiply
191,939.74x = 287,909.57 × 103,070.99 - Step 4: Simplify right side
191,939.74x = 29,675,125,387.83 - Step 5: Solve for x
x = 29,675,125,387.83/191,939.74 - Step 6: Final answer
x = 154,606.47
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1.5x scale
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.