Finding the Fourth Proportional to 186,310.05, 257,107.80 and 101,427.09
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Solution
The fourth proportional to 186,310.05, 257,107.80 and 101,427.09 is: 139,969.35
Step by Step Solution
- Step 1: Write the proportion equation
186,310.05 : 257,107.80 = 101,427.09 : x - Step 2: Convert to fraction form
186,310.05/257,107.80 = 101,427.09/x - Step 3: Cross multiply
186,310.05x = 257,107.80 × 101,427.09 - Step 4: Simplify right side
186,310.05x = 26,077,695,970.30 - Step 5: Solve for x
x = 26,077,695,970.30/186,310.05 - Step 6: Final answer
x = 139,969.35
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1.5x scale
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.