Finding the Fourth Proportional to 160,871.24, 221,980.02 and 107,190.92
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Solution
The fourth proportional to 160,871.24, 221,980.02 and 107,190.92 is: 147,908.62
Step by Step Solution
- Step 1: Write the proportion equation
160,871.24 : 221,980.02 = 107,190.92 : x - Step 2: Convert to fraction form
160,871.24/221,980.02 = 107,190.92/x - Step 3: Cross multiply
160,871.24x = 221,980.02 × 107,190.92 - Step 4: Simplify right side
160,871.24x = 23,794,242,565.42 - Step 5: Solve for x
x = 23,794,242,565.42/160,871.24 - Step 6: Final answer
x = 147,908.62
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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.