Finding the Fourth Proportional to 357,961.36, 536,606.70 and 121,138.24
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Solution
The fourth proportional to 357,961.36, 536,606.70 and 121,138.24 is: 181,593.88
Step by Step Solution
- Step 1: Write the proportion equation
357,961.36 : 536,606.70 = 121,138.24 : x - Step 2: Convert to fraction form
357,961.36/536,606.70 = 121,138.24/x - Step 3: Cross multiply
357,961.36x = 536,606.70 × 121,138.24 - Step 4: Simplify right side
357,961.36x = 65,003,591,210.21 - Step 5: Solve for x
x = 65,003,591,210.21/357,961.36 - Step 6: Final answer
x = 181,593.88
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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.