Finding the Fourth Proportional to 120,548.48, 166,309.44 and 75,200
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Solution
The fourth proportional to 120,548.48, 166,309.44 and 75,200 is: 103,746.39
Step by Step Solution
- Step 1: Write the proportion equation
120,548.48 : 166,309.44 = 75,200 : x - Step 2: Convert to fraction form
120,548.48/166,309.44 = 75,200/x - Step 3: Cross multiply
120,548.48x = 166,309.44 × 75,200 - Step 4: Simplify right side
120,548.48x = 12,506,469,888 - Step 5: Solve for x
x = 12,506,469,888/120,548.48 - Step 6: Final answer
x = 103,746.39
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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.