Finding the Fourth Proportional to 98,904.13, 136,487.53 and 53,583.26
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Solution
The fourth proportional to 98,904.13, 136,487.53 and 53,583.26 is: 73,944.81
Step by Step Solution
- Step 1: Write the proportion equation
98,904.13 : 136,487.53 = 53,583.26 : x - Step 2: Convert to fraction form
98,904.13/136,487.53 = 53,583.26/x - Step 3: Cross multiply
98,904.13x = 136,487.53 × 53,583.26 - Step 4: Simplify right side
98,904.13x = 7,313,446,806.75 - Step 5: Solve for x
x = 7,313,446,806.75/98,904.13 - Step 6: Final answer
x = 73,944.81
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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.