Finding the Fourth Proportional to 43,718,058.28, 65,293,645.40 and 39,611,173.99
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Solution
The fourth proportional to 43,718,058.28, 65,293,645.40 and 39,611,173.99 is: 59,159,945.57
Step by Step Solution
- Step 1: Write the proportion equation
43,718,058.28 : 65,293,645.40 = 39,611,173.99 : x - Step 2: Convert to fraction form
43,718,058.28/65,293,645.40 = 39,611,173.99/x - Step 3: Cross multiply
43,718,058.28x = 65,293,645.40 × 39,611,173.99 - Step 4: Simplify right side
43,718,058.28x = 2,586,357,948,380,763 - Step 5: Solve for x
x = 2,586,357,948,380,763/43,718,058.28 - Step 6: Final answer
x = 59,159,945.57
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.