Finding the Fourth Proportional to 236,364.79, 326,185.49 and 128,935.30
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Solution
The fourth proportional to 236,364.79, 326,185.49 and 128,935.30 is: 177,931.85
Step by Step Solution
- Step 1: Write the proportion equation
236,364.79 : 326,185.49 = 128,935.30 : x - Step 2: Convert to fraction form
236,364.79/326,185.49 = 128,935.30/x - Step 3: Cross multiply
236,364.79x = 326,185.49 × 128,935.30 - Step 4: Simplify right side
236,364.79x = 42,056,824,008.80 - Step 5: Solve for x
x = 42,056,824,008.80/236,364.79 - Step 6: Final answer
x = 177,931.85
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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.