Finding the Fourth Proportional to 193,183.10, 289,918.65 and 99,640.70
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Solution
The fourth proportional to 193,183.10, 289,918.65 and 99,640.70 is: 149,535.32
Step by Step Solution
- Step 1: Write the proportion equation
193,183.10 : 289,918.65 = 99,640.70 : x - Step 2: Convert to fraction form
193,183.10/289,918.65 = 99,640.70/x - Step 3: Cross multiply
193,183.10x = 289,918.65 × 99,640.70 - Step 4: Simplify right side
193,183.10x = 28,887,697,229.06 - Step 5: Solve for x
x = 28,887,697,229.06/193,183.10 - Step 6: Final answer
x = 149,535.32
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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.