Finding the Fourth Proportional to 72,048,559.92, 99,426,881.25 and 39,008,805
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Solution
The fourth proportional to 72,048,559.92, 99,426,881.25 and 39,008,805 is: 53,832,079.74
Step by Step Solution
- Step 1: Write the proportion equation
72,048,559.92 : 99,426,881.25 = 39,008,805 : x - Step 2: Convert to fraction form
72,048,559.92/99,426,881.25 = 39,008,805/x - Step 3: Cross multiply
72,048,559.92x = 99,426,881.25 × 39,008,805 - Step 4: Simplify right side
72,048,559.92x = 3,878,523,822,439,406 - Step 5: Solve for x
x = 3,878,523,822,439,406/72,048,559.92 - Step 6: Final answer
x = 53,832,079.74
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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.