Finding the Fourth Proportional to 103,724,976.77, 143,148,627.67 and 59,072,836.99
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Solution
The fourth proportional to 103,724,976.77, 143,148,627.67 and 59,072,836.99 is: 81,525,162.13
Step by Step Solution
- Step 1: Write the proportion equation
103,724,976.77 : 143,148,627.67 = 59,072,836.99 : x - Step 2: Convert to fraction form
103,724,976.77/143,148,627.67 = 59,072,836.99/x - Step 3: Cross multiply
103,724,976.77x = 143,148,627.67 × 59,072,836.99 - Step 4: Simplify right side
103,724,976.77x = 8,456,195,547,692,113 - Step 5: Solve for x
x = 8,456,195,547,692,113/103,724,976.77 - Step 6: Final answer
x = 81,525,162.13
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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.