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Finding the Fourth Proportional to 303,665.85, 419,037.77 and 167,698.62

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Solution

The fourth proportional to 303,665.85, 419,037.77 and 167,698.62 is: 231,412.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,665.85 : 419,037.77 = 167,698.62 : x
  2. Step 2: Convert to fraction form
    303,665.85/419,037.77 = 167,698.62/x
  3. Step 3: Cross multiply
    303,665.85x = 419,037.77 × 167,698.62
  4. Step 4: Simplify right side
    303,665.85x = 70,272,056,176.12
  5. Step 5: Solve for x
    x = 70,272,056,176.12/303,665.85
  6. Step 6: Final answer
    x = 231,412.44

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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.