Finding the Third Proportional to 78,995.25 and 140,467.50
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Solution
The third proportional to 78,995.25 and 140,467.50 is: 249,776.01
Step by Step Solution
- Step 1: Write the proportion equation
78,995.25 : 140,467.50 = 140,467.50 : x - Step 2: Convert to fraction form
78,995.25/140,467.50 = 140,467.50/x - Step 3: Cross multiply
78,995.25x = 140,467.50 × 140,467.50 - Step 4: Simplify right side
78,995.25x = 19,731,118,556.25 - Step 5: Solve for x
x = 19,731,118,556.25/78,995.25 - Step 6: Final answer
x = 249,776.01
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Why These Related Problems?
These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.