Finding the Fourth Proportional to 97,988.48, 135,224.64 and 57,704
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Solution
The fourth proportional to 97,988.48, 135,224.64 and 57,704 is: 79,631.84
Step by Step Solution
- Step 1: Write the proportion equation
97,988.48 : 135,224.64 = 57,704 : x - Step 2: Convert to fraction form
97,988.48/135,224.64 = 57,704/x - Step 3: Cross multiply
97,988.48x = 135,224.64 × 57,704 - Step 4: Simplify right side
97,988.48x = 7,803,002,626.56 - Step 5: Solve for x
x = 7,803,002,626.56/97,988.48 - Step 6: Final answer
x = 79,631.84
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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.