Finding the Fourth Proportional to 90,058,161.81, 124,280,369.60 and 48,805,054.19
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Solution
The fourth proportional to 90,058,161.81, 124,280,369.60 and 48,805,054.19 is: 67,351,032.38
Step by Step Solution
- Step 1: Write the proportion equation
90,058,161.81 : 124,280,369.60 = 48,805,054.19 : x - Step 2: Convert to fraction form
90,058,161.81/124,280,369.60 = 48,805,054.19/x - Step 3: Cross multiply
90,058,161.81x = 124,280,369.60 × 48,805,054.19 - Step 4: Simplify right side
90,058,161.81x = 6,065,510,172,215,802 - Step 5: Solve for x
x = 6,065,510,172,215,802/90,058,161.81 - Step 6: Final answer
x = 67,351,032.38
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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.