Finding the Fourth Proportional to 186,853.79, 257,742.99 and 133,156.05
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Solution
The fourth proportional to 186,853.79, 257,742.99 and 133,156.05 is: 183,673.23
Step by Step Solution
- Step 1: Write the proportion equation
186,853.79 : 257,742.99 = 133,156.05 : x - Step 2: Convert to fraction form
186,853.79/257,742.99 = 133,156.05/x - Step 3: Cross multiply
186,853.79x = 257,742.99 × 133,156.05 - Step 4: Simplify right side
186,853.79x = 34,320,038,463.59 - Step 5: Solve for x
x = 34,320,038,463.59/186,853.79 - Step 6: Final answer
x = 183,673.23
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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.