Finding the Fourth Proportional to 113,860,107.96, 157,127,023.12 and 61,649,178.99
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Solution
The fourth proportional to 113,860,107.96, 157,127,023.12 and 61,649,178.99 is: 85,075,907.15
Step by Step Solution
- Step 1: Write the proportion equation
113,860,107.96 : 157,127,023.12 = 61,649,178.99 : x - Step 2: Convert to fraction form
113,860,107.96/157,127,023.12 = 61,649,178.99/x - Step 3: Cross multiply
113,860,107.96x = 157,127,023.12 × 61,649,178.99 - Step 4: Simplify right side
113,860,107.96x = 9,686,751,972,490,748 - Step 5: Solve for x
x = 9,686,751,972,490,748/113,860,107.96 - Step 6: Final answer
x = 85,075,907.15
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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.