Finding the Fourth Proportional to 93,769,934.99, 129,447,492.53 and 65,916,521.69
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Solution
The fourth proportional to 93,769,934.99, 129,447,492.53 and 65,916,521.69 is: 90,996,420.65
Step by Step Solution
- Step 1: Write the proportion equation
93,769,934.99 : 129,447,492.53 = 65,916,521.69 : x - Step 2: Convert to fraction form
93,769,934.99/129,447,492.53 = 65,916,521.69/x - Step 3: Cross multiply
93,769,934.99x = 129,447,492.53 × 65,916,521.69 - Step 4: Simplify right side
93,769,934.99x = 8,532,728,448,093,039 - Step 5: Solve for x
x = 8,532,728,448,093,039/93,769,934.99 - Step 6: Final answer
x = 90,996,420.65
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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.