Finding the Fourth Proportional to 92,269.68, 138,404.60 and 66,025.68
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Solution
The fourth proportional to 92,269.68, 138,404.60 and 66,025.68 is: 99,038.58
Step by Step Solution
- Step 1: Write the proportion equation
92,269.68 : 138,404.60 = 66,025.68 : x - Step 2: Convert to fraction form
92,269.68/138,404.60 = 66,025.68/x - Step 3: Cross multiply
92,269.68x = 138,404.60 × 66,025.68 - Step 4: Simplify right side
92,269.68x = 9,138,257,830.13 - Step 5: Solve for x
x = 9,138,257,830.13/92,269.68 - Step 6: Final answer
x = 99,038.58
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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.