Finding the Fourth Proportional to 136,593.14, 188,417.30 and 106,330.56
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Solution
The fourth proportional to 136,593.14, 188,417.30 and 106,330.56 is: 146,672.94
Step by Step Solution
- Step 1: Write the proportion equation
136,593.14 : 188,417.30 = 106,330.56 : x - Step 2: Convert to fraction form
136,593.14/188,417.30 = 106,330.56/x - Step 3: Cross multiply
136,593.14x = 188,417.30 × 106,330.56 - Step 4: Simplify right side
136,593.14x = 20,034,517,022.69 - Step 5: Solve for x
x = 20,034,517,022.69/136,593.14 - Step 6: Final answer
x = 146,672.94
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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.