Finding the Fourth Proportional to 140,646,349.98, 194,043,389.67 and 88,439,358.42
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Solution
The fourth proportional to 140,646,349.98, 194,043,389.67 and 88,439,358.42 is: 122,015,771.40
Step by Step Solution
- Step 1: Write the proportion equation
140,646,349.98 : 194,043,389.67 = 88,439,358.42 : x - Step 2: Convert to fraction form
140,646,349.98/194,043,389.67 = 88,439,358.42/x - Step 3: Cross multiply
140,646,349.98x = 194,043,389.67 × 88,439,358.42 - Step 4: Simplify right side
140,646,349.98x = 17,161,072,888,056,854 - Step 5: Solve for x
x = 17,161,072,888,056,854/140,646,349.98 - Step 6: Final answer
x = 122,015,771.40
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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.