Finding the Fourth Proportional to 119,523,988.86, 164,938,749.99 and 66,597,961.92
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Solution
The fourth proportional to 119,523,988.86, 164,938,749.99 and 66,597,961.92 is: 91,902,761.08
Step by Step Solution
- Step 1: Write the proportion equation
119,523,988.86 : 164,938,749.99 = 66,597,961.92 : x - Step 2: Convert to fraction form
119,523,988.86/164,938,749.99 = 66,597,961.92/x - Step 3: Cross multiply
119,523,988.86x = 164,938,749.99 × 66,597,961.92 - Step 4: Simplify right side
119,523,988.86x = 10,984,584,590,966,422 - Step 5: Solve for x
x = 10,984,584,590,966,422/119,523,988.86 - Step 6: Final answer
x = 91,902,761.08
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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.