Finding the Fourth Proportional to 76,580,089.38, 105,681,197.81 and 41,772,934.62
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Solution
The fourth proportional to 76,580,089.38, 105,681,197.81 and 41,772,934.62 is: 57,647,017.68
Step by Step Solution
- Step 1: Write the proportion equation
76,580,089.38 : 105,681,197.81 = 41,772,934.62 : x - Step 2: Convert to fraction form
76,580,089.38/105,681,197.81 = 41,772,934.62/x - Step 3: Cross multiply
76,580,089.38x = 105,681,197.81 × 41,772,934.62 - Step 4: Simplify right side
76,580,089.38x = 4,414,613,766,680,417 - Step 5: Solve for x
x = 4,414,613,766,680,417/76,580,089.38 - Step 6: Final answer
x = 57,647,017.68
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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.