Finding the Fourth Proportional to 207,431.94, 286,261.82 and 126,858
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Solution
The fourth proportional to 207,431.94, 286,261.82 and 126,858 is: 175,067.55
Step by Step Solution
- Step 1: Write the proportion equation
207,431.94 : 286,261.82 = 126,858 : x - Step 2: Convert to fraction form
207,431.94/286,261.82 = 126,858/x - Step 3: Cross multiply
207,431.94x = 286,261.82 × 126,858 - Step 4: Simplify right side
207,431.94x = 36,314,601,961.56 - Step 5: Solve for x
x = 36,314,601,961.56/207,431.94 - Step 6: Final answer
x = 175,067.55
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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.