Finding the Fourth Proportional to 92,672,631.61, 138,190,174.20 and 91,840,843.41
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Solution
The fourth proportional to 92,672,631.61, 138,190,174.20 and 91,840,843.41 is: 136,949,840.84
Step by Step Solution
- Step 1: Write the proportion equation
92,672,631.61 : 138,190,174.20 = 91,840,843.41 : x - Step 2: Convert to fraction form
92,672,631.61/138,190,174.20 = 91,840,843.41/x - Step 3: Cross multiply
92,672,631.61x = 138,190,174.20 × 91,840,843.41 - Step 4: Simplify right side
92,672,631.61x = 12,691,502,148,811,870 - Step 5: Solve for x
x = 12,691,502,148,811,870/92,672,631.61 - Step 6: Final answer
x = 136,949,840.84
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.