Finding the Fourth Proportional to 93,451.19, 128,958.16 and 53,161.19
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Solution
The fourth proportional to 93,451.19, 128,958.16 and 53,161.19 is: 73,359.89
Step by Step Solution
- Step 1: Write the proportion equation
93,451.19 : 128,958.16 = 53,161.19 : x - Step 2: Convert to fraction form
93,451.19/128,958.16 = 53,161.19/x - Step 3: Cross multiply
93,451.19x = 128,958.16 × 53,161.19 - Step 4: Simplify right side
93,451.19x = 6,855,568,912.97 - Step 5: Solve for x
x = 6,855,568,912.97/93,451.19 - Step 6: Final answer
x = 73,359.89
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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.