Finding the Fourth Proportional to 75,638.16, 104,376.60 and 42,102
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Solution
The fourth proportional to 75,638.16, 104,376.60 and 42,102 is: 58,098.50
Step by Step Solution
- Step 1: Write the proportion equation
75,638.16 : 104,376.60 = 42,102 : x - Step 2: Convert to fraction form
75,638.16/104,376.60 = 42,102/x - Step 3: Cross multiply
75,638.16x = 104,376.60 × 42,102 - Step 4: Simplify right side
75,638.16x = 4,394,463,613.20 - Step 5: Solve for x
x = 4,394,463,613.20/75,638.16 - Step 6: Final answer
x = 58,098.50
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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.