Finding the Fourth Proportional to 82,756.80, 114,204 and 45,030.72
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Solution
The fourth proportional to 82,756.80, 114,204 and 45,030.72 is: 62,142.18
Step by Step Solution
- Step 1: Write the proportion equation
82,756.80 : 114,204 = 45,030.72 : x - Step 2: Convert to fraction form
82,756.80/114,204 = 45,030.72/x - Step 3: Cross multiply
82,756.80x = 114,204 × 45,030.72 - Step 4: Simplify right side
82,756.80x = 5,142,688,346.88 - Step 5: Solve for x
x = 5,142,688,346.88/82,756.80 - Step 6: Final answer
x = 62,142.18
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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.