Finding the Fourth Proportional to 186,811.13, 257,799.20 and 101,928.19
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Solution
The fourth proportional to 186,811.13, 257,799.20 and 101,928.19 is: 140,660.82
Step by Step Solution
- Step 1: Write the proportion equation
186,811.13 : 257,799.20 = 101,928.19 : x - Step 2: Convert to fraction form
186,811.13/257,799.20 = 101,928.19/x - Step 3: Cross multiply
186,811.13x = 257,799.20 × 101,928.19 - Step 4: Simplify right side
186,811.13x = 26,277,005,449.77 - Step 5: Solve for x
x = 26,277,005,449.77/186,811.13 - Step 6: Final answer
x = 140,660.82
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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.