Finding the Fourth Proportional to 88,718.60, 122,431.98 and 48,433.26
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Solution
The fourth proportional to 88,718.60, 122,431.98 and 48,433.26 is: 66,838.07
Step by Step Solution
- Step 1: Write the proportion equation
88,718.60 : 122,431.98 = 48,433.26 : x - Step 2: Convert to fraction form
88,718.60/122,431.98 = 48,433.26/x - Step 3: Cross multiply
88,718.60x = 122,431.98 × 48,433.26 - Step 4: Simplify right side
88,718.60x = 5,929,779,919.65 - Step 5: Solve for x
x = 5,929,779,919.65/88,718.60 - Step 6: Final answer
x = 66,838.07
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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.