Finding the Fourth Proportional to 186,561.43, 257,193.93 and 157,765.42
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Solution
The fourth proportional to 186,561.43, 257,193.93 and 157,765.42 is: 217,495.71
Step by Step Solution
- Step 1: Write the proportion equation
186,561.43 : 257,193.93 = 157,765.42 : x - Step 2: Convert to fraction form
186,561.43/257,193.93 = 157,765.42/x - Step 3: Cross multiply
186,561.43x = 257,193.93 × 157,765.42 - Step 4: Simplify right side
186,561.43x = 40,576,309,301.01 - Step 5: Solve for x
x = 40,576,309,301.01/186,561.43 - Step 6: Final answer
x = 217,495.71
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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.