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Finding the Fourth Proportional to 187,939.20, 263,464.80 and 187,939.20

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Solution

The fourth proportional to 187,939.20, 263,464.80 and 187,939.20 is: 263,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,939.20 : 263,464.80 = 187,939.20 : x
  2. Step 2: Convert to fraction form
    187,939.20/263,464.80 = 187,939.20/x
  3. Step 3: Cross multiply
    187,939.20x = 263,464.80 × 187,939.20
  4. Step 4: Simplify right side
    187,939.20x = 49,515,363,740.16
  5. Step 5: Solve for x
    x = 49,515,363,740.16/187,939.20
  6. Step 6: Final answer
    x = 263,464.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.