Finding the Fourth Proportional to 78,546.92, 108,359.52 and 53,045
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Solution
The fourth proportional to 78,546.92, 108,359.52 and 53,045 is: 73,178.31
Step by Step Solution
- Step 1: Write the proportion equation
78,546.92 : 108,359.52 = 53,045 : x - Step 2: Convert to fraction form
78,546.92/108,359.52 = 53,045/x - Step 3: Cross multiply
78,546.92x = 108,359.52 × 53,045 - Step 4: Simplify right side
78,546.92x = 5,747,930,738.40 - Step 5: Solve for x
x = 5,747,930,738.40/78,546.92 - Step 6: Final answer
x = 73,178.31
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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.