Finding the Fourth Proportional to 93,451.14, 128,958.09 and 53,161.13
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Solution
The fourth proportional to 93,451.14, 128,958.09 and 53,161.13 is: 73,359.81
Step by Step Solution
- Step 1: Write the proportion equation
93,451.14 : 128,958.09 = 53,161.13 : x - Step 2: Convert to fraction form
93,451.14/128,958.09 = 53,161.13/x - Step 3: Cross multiply
93,451.14x = 128,958.09 × 53,161.13 - Step 4: Simplify right side
93,451.14x = 6,855,557,787.04 - Step 5: Solve for x
x = 6,855,557,787.04/93,451.14 - Step 6: Final answer
x = 73,359.81
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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.