Finding the Fourth Proportional to 192,813.40, 289,220.10 and 129,827.80
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Solution
The fourth proportional to 192,813.40, 289,220.10 and 129,827.80 is: 194,741.70
Step by Step Solution
- Step 1: Write the proportion equation
192,813.40 : 289,220.10 = 129,827.80 : x - Step 2: Convert to fraction form
192,813.40/289,220.10 = 129,827.80/x - Step 3: Cross multiply
192,813.40x = 289,220.10 × 129,827.80 - Step 4: Simplify right side
192,813.40x = 37,548,809,298.78 - Step 5: Solve for x
x = 37,548,809,298.78/192,813.40 - Step 6: Final answer
x = 194,741.70
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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.