Finding the Fourth Proportional to 135,995,571.93, 187,674,524.81 and 77,261,459.95
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Solution
The fourth proportional to 135,995,571.93, 187,674,524.81 and 77,261,459.95 is: 106,621,175.80
Step by Step Solution
- Step 1: Write the proportion equation
135,995,571.93 : 187,674,524.81 = 77,261,459.95 : x - Step 2: Convert to fraction form
135,995,571.93/187,674,524.81 = 77,261,459.95/x - Step 3: Cross multiply
135,995,571.93x = 187,674,524.81 × 77,261,459.95 - Step 4: Simplify right side
135,995,571.93x = 14,500,007,782,436,250 - Step 5: Solve for x
x = 14,500,007,782,436,250/135,995,571.93 - Step 6: Final answer
x = 106,621,175.80
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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.