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Finding the Fourth Proportional to 279,798.64, 419,542.44 and 113,392.24

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Solution

The fourth proportional to 279,798.64, 419,542.44 and 113,392.24 is: 170,025.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,798.64 : 419,542.44 = 113,392.24 : x
  2. Step 2: Convert to fraction form
    279,798.64/419,542.44 = 113,392.24/x
  3. Step 3: Cross multiply
    279,798.64x = 419,542.44 × 113,392.24
  4. Step 4: Simplify right side
    279,798.64x = 47,572,857,046.67
  5. Step 5: Solve for x
    x = 47,572,857,046.67/279,798.64
  6. Step 6: Final answer
    x = 170,025.33

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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.