Finding the Fourth Proportional to 128,637.81, 192,953.93 and 44,395.14
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Solution
The fourth proportional to 128,637.81, 192,953.93 and 44,395.14 is: 66,591.75
Step by Step Solution
- Step 1: Write the proportion equation
128,637.81 : 192,953.93 = 44,395.14 : x - Step 2: Convert to fraction form
128,637.81/192,953.93 = 44,395.14/x - Step 3: Cross multiply
128,637.81x = 192,953.93 × 44,395.14 - Step 4: Simplify right side
128,637.81x = 8,566,216,513.92 - Step 5: Solve for x
x = 8,566,216,513.92/128,637.81 - Step 6: Final answer
x = 66,591.75
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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.