Finding the Fourth Proportional to 137,600.36, 189,811.59 and 86,594.05
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Solution
The fourth proportional to 137,600.36, 189,811.59 and 86,594.05 is: 119,451.39
Step by Step Solution
- Step 1: Write the proportion equation
137,600.36 : 189,811.59 = 86,594.05 : x - Step 2: Convert to fraction form
137,600.36/189,811.59 = 86,594.05/x - Step 3: Cross multiply
137,600.36x = 189,811.59 × 86,594.05 - Step 4: Simplify right side
137,600.36x = 16,436,553,365.98 - Step 5: Solve for x
x = 16,436,553,365.98/137,600.36 - Step 6: Final answer
x = 119,451.39
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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.