Finding the Fourth Proportional to 76,083,497.76, 113,865,780.96 and 48,403,426.08
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Solution
The fourth proportional to 76,083,497.76, 113,865,780.96 and 48,403,426.08 is: 72,440,070.11
Step by Step Solution
- Step 1: Write the proportion equation
76,083,497.76 : 113,865,780.96 = 48,403,426.08 : x - Step 2: Convert to fraction form
76,083,497.76/113,865,780.96 = 48,403,426.08/x - Step 3: Cross multiply
76,083,497.76x = 113,865,780.96 × 48,403,426.08 - Step 4: Simplify right side
76,083,497.76x = 5,511,493,911,738,831 - Step 5: Solve for x
x = 5,511,493,911,738,831/76,083,497.76 - Step 6: Final answer
x = 72,440,070.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.