Finding the Fourth Proportional to 121,701,590.93, 167,929,620.24 and 68,758,981.04
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Solution
The fourth proportional to 121,701,590.93, 167,929,620.24 and 68,758,981.04 is: 94,876,899.19
Step by Step Solution
- Step 1: Write the proportion equation
121,701,590.93 : 167,929,620.24 = 68,758,981.04 : x - Step 2: Convert to fraction form
121,701,590.93/167,929,620.24 = 68,758,981.04/x - Step 3: Cross multiply
121,701,590.93x = 167,929,620.24 × 68,758,981.04 - Step 4: Simplify right side
121,701,590.93x = 11,546,669,574,136,562 - Step 5: Solve for x
x = 11,546,669,574,136,562/121,701,590.93 - Step 6: Final answer
x = 94,876,899.19
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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.