Finding the Fourth Proportional to 220,967.84, 331,451.58 and 54,755.84
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Solution
The fourth proportional to 220,967.84, 331,451.58 and 54,755.84 is: 82,133.72
Step by Step Solution
- Step 1: Write the proportion equation
220,967.84 : 331,451.58 = 54,755.84 : x - Step 2: Convert to fraction form
220,967.84/331,451.58 = 54,755.84/x - Step 3: Cross multiply
220,967.84x = 331,451.58 × 54,755.84 - Step 4: Simplify right side
220,967.84x = 18,148,909,682.23 - Step 5: Solve for x
x = 18,148,909,682.23/220,967.84 - Step 6: Final answer
x = 82,133.72
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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.