Finding the Fourth Proportional to 121,926.24, 182,790.94 and 112,084.74
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Solution
The fourth proportional to 121,926.24, 182,790.94 and 112,084.74 is: 168,036.63
Step by Step Solution
- Step 1: Write the proportion equation
121,926.24 : 182,790.94 = 112,084.74 : x - Step 2: Convert to fraction form
121,926.24/182,790.94 = 112,084.74/x - Step 3: Cross multiply
121,926.24x = 182,790.94 × 112,084.74 - Step 4: Simplify right side
121,926.24x = 20,488,074,984.26 - Step 5: Solve for x
x = 20,488,074,984.26/121,926.24 - Step 6: Final answer
x = 168,036.63
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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.