Finding the Fourth Proportional to 186,893.09, 257,888.35 and 105,211.03
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Solution
The fourth proportional to 186,893.09, 257,888.35 and 105,211.03 is: 145,177.65
Step by Step Solution
- Step 1: Write the proportion equation
186,893.09 : 257,888.35 = 105,211.03 : x - Step 2: Convert to fraction form
186,893.09/257,888.35 = 105,211.03/x - Step 3: Cross multiply
186,893.09x = 257,888.35 × 105,211.03 - Step 4: Simplify right side
186,893.09x = 27,132,698,020.75 - Step 5: Solve for x
x = 27,132,698,020.75/186,893.09 - Step 6: Final answer
x = 145,177.65
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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.