Finding the Fourth Proportional to 136,207,033.74, 187,969,676.37 and 74,331,358.02
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Solution
The fourth proportional to 136,207,033.74, 187,969,676.37 and 74,331,358.02 is: 102,579,440.48
Step by Step Solution
- Step 1: Write the proportion equation
136,207,033.74 : 187,969,676.37 = 74,331,358.02 : x - Step 2: Convert to fraction form
136,207,033.74/187,969,676.37 = 74,331,358.02/x - Step 3: Cross multiply
136,207,033.74x = 187,969,676.37 × 74,331,358.02 - Step 4: Simplify right side
136,207,033.74x = 13,972,041,311,162,004 - Step 5: Solve for x
x = 13,972,041,311,162,004/136,207,033.74 - Step 6: Final answer
x = 102,579,440.48
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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.