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Finding the Fourth Proportional to 169,147.35, 253,694.57 and 74,356.56

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Solution

The fourth proportional to 169,147.35, 253,694.57 and 74,356.56 is: 111,523.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,147.35 : 253,694.57 = 74,356.56 : x
  2. Step 2: Convert to fraction form
    169,147.35/253,694.57 = 74,356.56/x
  3. Step 3: Cross multiply
    169,147.35x = 253,694.57 × 74,356.56
  4. Step 4: Simplify right side
    169,147.35x = 18,863,855,144.10
  5. Step 5: Solve for x
    x = 18,863,855,144.10/169,147.35
  6. Step 6: Final answer
    x = 111,523.21

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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.