Finding the Fourth Proportional to 235,684.97, 325,280.30 and 138,857.87
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Solution
The fourth proportional to 235,684.97, 325,280.30 and 138,857.87 is: 191,644.50
Step by Step Solution
- Step 1: Write the proportion equation
235,684.97 : 325,280.30 = 138,857.87 : x - Step 2: Convert to fraction form
235,684.97/325,280.30 = 138,857.87/x - Step 3: Cross multiply
235,684.97x = 325,280.30 × 138,857.87 - Step 4: Simplify right side
235,684.97x = 45,167,729,729.87 - Step 5: Solve for x
x = 45,167,729,729.87/235,684.97 - Step 6: Final answer
x = 191,644.50
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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.