Finding the Fourth Proportional to 236,118.96, 325,834.66 and 128,686.70
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Solution
The fourth proportional to 236,118.96, 325,834.66 and 128,686.70 is: 177,582.47
Step by Step Solution
- Step 1: Write the proportion equation
236,118.96 : 325,834.66 = 128,686.70 : x - Step 2: Convert to fraction form
236,118.96/325,834.66 = 128,686.70/x - Step 3: Cross multiply
236,118.96x = 325,834.66 × 128,686.70 - Step 4: Simplify right side
236,118.96x = 41,930,587,141.02 - Step 5: Solve for x
x = 41,930,587,141.02/236,118.96 - Step 6: Final answer
x = 177,582.47
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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.