Finding the Fourth Proportional to 186,318.23, 257,117.54 and 101,435.09
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Solution
The fourth proportional to 186,318.23, 257,117.54 and 101,435.09 is: 139,979.54
Step by Step Solution
- Step 1: Write the proportion equation
186,318.23 : 257,117.54 = 101,435.09 : x - Step 2: Convert to fraction form
186,318.23/257,117.54 = 101,435.09/x - Step 3: Cross multiply
186,318.23x = 257,117.54 × 101,435.09 - Step 4: Simplify right side
186,318.23x = 26,080,740,303.30 - Step 5: Solve for x
x = 26,080,740,303.30/186,318.23 - Step 6: Final answer
x = 139,979.54
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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.