Finding the Fourth Proportional to 79,380, 109,549.80 and 45,846
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Solution
The fourth proportional to 79,380, 109,549.80 and 45,846 is: 63,270.60
Step by Step Solution
- Step 1: Write the proportion equation
79,380 : 109,549.80 = 45,846 : x - Step 2: Convert to fraction form
79,380/109,549.80 = 45,846/x - Step 3: Cross multiply
79,380x = 109,549.80 × 45,846 - Step 4: Simplify right side
79,380x = 5,022,420,130.80 - Step 5: Solve for x
x = 5,022,420,130.80/79,380 - Step 6: Final answer
x = 63,270.60
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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.