Finding the Fourth Proportional to 103,815,950.73, 143,217,232.56 and 74,053,177.08
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Solution
The fourth proportional to 103,815,950.73, 143,217,232.56 and 74,053,177.08 is: 102,158,589.40
Step by Step Solution
- Step 1: Write the proportion equation
103,815,950.73 : 143,217,232.56 = 74,053,177.08 : x - Step 2: Convert to fraction form
103,815,950.73/143,217,232.56 = 74,053,177.08/x - Step 3: Cross multiply
103,815,950.73x = 143,217,232.56 × 74,053,177.08 - Step 4: Simplify right side
103,815,950.73x = 10,605,691,083,673,222 - Step 5: Solve for x
x = 10,605,691,083,673,222/103,815,950.73 - Step 6: Final answer
x = 102,158,589.40
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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.