Finding the Fourth Proportional to 118,332,799.73, 163,315,485.80 and 68,095,985.91
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Solution
The fourth proportional to 118,332,799.73, 163,315,485.80 and 68,095,985.91 is: 93,981,795.79
Step by Step Solution
- Step 1: Write the proportion equation
118,332,799.73 : 163,315,485.80 = 68,095,985.91 : x - Step 2: Convert to fraction form
118,332,799.73/163,315,485.80 = 68,095,985.91/x - Step 3: Cross multiply
118,332,799.73x = 163,315,485.80 × 68,095,985.91 - Step 4: Simplify right side
118,332,799.73x = 11,121,129,019,921,606 - Step 5: Solve for x
x = 11,121,129,019,921,606/118,332,799.73 - Step 6: Final answer
x = 93,981,795.79
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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.