Finding the Fourth Proportional to 82,700.34, 123,994.37 and 42,074
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Solution
The fourth proportional to 82,700.34, 123,994.37 and 42,074 is: 63,082.44
Step by Step Solution
- Step 1: Write the proportion equation
82,700.34 : 123,994.37 = 42,074 : x - Step 2: Convert to fraction form
82,700.34/123,994.37 = 42,074/x - Step 3: Cross multiply
82,700.34x = 123,994.37 × 42,074 - Step 4: Simplify right side
82,700.34x = 5,216,938,913.01 - Step 5: Solve for x
x = 5,216,938,913.01/82,700.34 - Step 6: Final answer
x = 63,082.44
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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.