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Finding the Fourth Proportional to 168,387.75, 252,581.01 and 43,728.75

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Solution

The fourth proportional to 168,387.75, 252,581.01 and 43,728.75 is: 65,592.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,387.75 : 252,581.01 = 43,728.75 : x
  2. Step 2: Convert to fraction form
    168,387.75/252,581.01 = 43,728.75/x
  3. Step 3: Cross multiply
    168,387.75x = 252,581.01 × 43,728.75
  4. Step 4: Simplify right side
    168,387.75x = 11,045,051,841.04
  5. Step 5: Solve for x
    x = 11,045,051,841.04/168,387.75
  6. Step 6: Final answer
    x = 65,592.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.