Finding the Fourth Proportional to 116,564,022.12, 160,930,945.97 and 74,201,484.06
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Solution
The fourth proportional to 116,564,022.12, 160,930,945.97 and 74,201,484.06 is: 102,444,260.29
Step by Step Solution
- Step 1: Write the proportion equation
116,564,022.12 : 160,930,945.97 = 74,201,484.06 : x - Step 2: Convert to fraction form
116,564,022.12/160,930,945.97 = 74,201,484.06/x - Step 3: Cross multiply
116,564,022.12x = 160,930,945.97 × 74,201,484.06 - Step 4: Simplify right side
116,564,022.12x = 11,941,315,022,153,676 - Step 5: Solve for x
x = 11,941,315,022,153,676/116,564,022.12 - Step 6: Final answer
x = 102,444,260.29
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1.5x scale
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.