Finding the Fourth Proportional to 135,780,090.44, 187,376,514.42 and 73,900,872.68
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Solution
The fourth proportional to 135,780,090.44, 187,376,514.42 and 73,900,872.68 is: 101,983,198.64
Step by Step Solution
- Step 1: Write the proportion equation
135,780,090.44 : 187,376,514.42 = 73,900,872.68 : x - Step 2: Convert to fraction form
135,780,090.44/187,376,514.42 = 73,900,872.68/x - Step 3: Cross multiply
135,780,090.44x = 187,376,514.42 × 73,900,872.68 - Step 4: Simplify right side
135,780,090.44x = 13,847,287,935,374,604 - Step 5: Solve for x
x = 13,847,287,935,374,604/135,780,090.44 - Step 6: Final answer
x = 101,983,198.64
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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.