Finding the Fourth Proportional to 127,286.70, 190,930.05 and 97,853.10
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Solution
The fourth proportional to 127,286.70, 190,930.05 and 97,853.10 is: 146,779.65
Step by Step Solution
- Step 1: Write the proportion equation
127,286.70 : 190,930.05 = 97,853.10 : x - Step 2: Convert to fraction form
127,286.70/190,930.05 = 97,853.10/x - Step 3: Cross multiply
127,286.70x = 190,930.05 × 97,853.10 - Step 4: Simplify right side
127,286.70x = 18,683,097,275.66 - Step 5: Solve for x
x = 18,683,097,275.66/127,286.70 - Step 6: Final answer
x = 146,779.65
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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.