Finding the Fourth Proportional to 128,533.60, 193,030.80 and 93,512.80
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Solution
The fourth proportional to 128,533.60, 193,030.80 and 93,512.80 is: 140,436.82
Step by Step Solution
- Step 1: Write the proportion equation
128,533.60 : 193,030.80 = 93,512.80 : x - Step 2: Convert to fraction form
128,533.60/193,030.80 = 93,512.80/x - Step 3: Cross multiply
128,533.60x = 193,030.80 × 93,512.80 - Step 4: Simplify right side
128,533.60x = 18,050,850,594.24 - Step 5: Solve for x
x = 18,050,850,594.24/128,533.60 - Step 6: Final answer
x = 140,436.82
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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.