Finding the Fourth Proportional to 123,844.86, 170,920.50 and 73,543.86
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Solution
The fourth proportional to 123,844.86, 170,920.50 and 73,543.86 is: 101,499.19
Step by Step Solution
- Step 1: Write the proportion equation
123,844.86 : 170,920.50 = 73,543.86 : x - Step 2: Convert to fraction form
123,844.86/170,920.50 = 73,543.86/x - Step 3: Cross multiply
123,844.86x = 170,920.50 × 73,543.86 - Step 4: Simplify right side
123,844.86x = 12,570,153,323.13 - Step 5: Solve for x
x = 12,570,153,323.13/123,844.86 - Step 6: Final answer
x = 101,499.19
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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.