Finding the Fourth Proportional to 186,000.11, 256,700.21 and 105,418.99
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Solution
The fourth proportional to 186,000.11, 256,700.21 and 105,418.99 is: 145,489.57
Step by Step Solution
- Step 1: Write the proportion equation
186,000.11 : 256,700.21 = 105,418.99 : x - Step 2: Convert to fraction form
186,000.11/256,700.21 = 105,418.99/x - Step 3: Cross multiply
186,000.11x = 256,700.21 × 105,418.99 - Step 4: Simplify right side
186,000.11x = 27,061,076,492.78 - Step 5: Solve for x
x = 27,061,076,492.78/186,000.11 - Step 6: Final answer
x = 145,489.57
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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.