Finding the Fourth Proportional to 107,457.84, 161,131.05 and 56,884.28
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Solution
The fourth proportional to 107,457.84, 161,131.05 and 56,884.28 is: 85,296.92
Step by Step Solution
- Step 1: Write the proportion equation
107,457.84 : 161,131.05 = 56,884.28 : x - Step 2: Convert to fraction form
107,457.84/161,131.05 = 56,884.28/x - Step 3: Cross multiply
107,457.84x = 161,131.05 × 56,884.28 - Step 4: Simplify right side
107,457.84x = 9,165,822,959.24 - Step 5: Solve for x
x = 9,165,822,959.24/107,457.84 - Step 6: Final answer
x = 85,296.92
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.