Finding the Fourth Proportional to 186,894.09, 257,889.73 and 105,212.03
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Solution
The fourth proportional to 186,894.09, 257,889.73 and 105,212.03 is: 145,179.03
Step by Step Solution
- Step 1: Write the proportion equation
186,894.09 : 257,889.73 = 105,212.03 : x - Step 2: Convert to fraction form
186,894.09/257,889.73 = 105,212.03/x - Step 3: Cross multiply
186,894.09x = 257,889.73 × 105,212.03 - Step 4: Simplify right side
186,894.09x = 27,133,102,009.45 - Step 5: Solve for x
x = 27,133,102,009.45/186,894.09 - Step 6: Final answer
x = 145,179.03
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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.