Finding the Fourth Proportional to 186,319.08, 257,120.16 and 101,436.12
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Solution
The fourth proportional to 186,319.08, 257,120.16 and 101,436.12 is: 139,981.75
Step by Step Solution
- Step 1: Write the proportion equation
186,319.08 : 257,120.16 = 101,436.12 : x - Step 2: Convert to fraction form
186,319.08/257,120.16 = 101,436.12/x - Step 3: Cross multiply
186,319.08x = 257,120.16 × 101,436.12 - Step 4: Simplify right side
186,319.08x = 26,081,271,404.18 - Step 5: Solve for x
x = 26,081,271,404.18/186,319.08 - Step 6: Final answer
x = 139,981.75
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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.