Finding the Fourth Proportional to 116,048.70, 160,135.18 and 68,299.20
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Solution
The fourth proportional to 116,048.70, 160,135.18 and 68,299.20 is: 94,245.82
Step by Step Solution
- Step 1: Write the proportion equation
116,048.70 : 160,135.18 = 68,299.20 : x - Step 2: Convert to fraction form
116,048.70/160,135.18 = 68,299.20/x - Step 3: Cross multiply
116,048.70x = 160,135.18 × 68,299.20 - Step 4: Simplify right side
116,048.70x = 10,937,104,515.11 - Step 5: Solve for x
x = 10,937,104,515.11/116,048.70 - Step 6: Final answer
x = 94,245.82
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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.