Finding the Fourth Proportional to 186,390.14, 257,202.09 and 105,821.06
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Solution
The fourth proportional to 186,390.14, 257,202.09 and 105,821.06 is: 146,023.81
Step by Step Solution
- Step 1: Write the proportion equation
186,390.14 : 257,202.09 = 105,821.06 : x - Step 2: Convert to fraction form
186,390.14/257,202.09 = 105,821.06/x - Step 3: Cross multiply
186,390.14x = 257,202.09 × 105,821.06 - Step 4: Simplify right side
186,390.14x = 27,217,397,798.02 - Step 5: Solve for x
x = 27,217,397,798.02/186,390.14 - Step 6: Final answer
x = 146,023.81
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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.