Finding the Fourth Proportional to 115,199.24, 158,974.26 and 64,914.44
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Solution
The fourth proportional to 115,199.24, 158,974.26 and 64,914.44 is: 89,581.54
Step by Step Solution
- Step 1: Write the proportion equation
115,199.24 : 158,974.26 = 64,914.44 : x - Step 2: Convert to fraction form
115,199.24/158,974.26 = 64,914.44/x - Step 3: Cross multiply
115,199.24x = 158,974.26 × 64,914.44 - Step 4: Simplify right side
115,199.24x = 10,319,725,062.31 - Step 5: Solve for x
x = 10,319,725,062.31/115,199.24 - Step 6: Final answer
x = 89,581.54
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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.