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Finding the Fourth Proportional to 185,262.22, 255,662.03 and 100,379.28

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Solution

The fourth proportional to 185,262.22, 255,662.03 and 100,379.28 is: 138,523.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,262.22 : 255,662.03 = 100,379.28 : x
  2. Step 2: Convert to fraction form
    185,262.22/255,662.03 = 100,379.28/x
  3. Step 3: Cross multiply
    185,262.22x = 255,662.03 × 100,379.28
  4. Step 4: Simplify right side
    185,262.22x = 25,663,170,745.69
  5. Step 5: Solve for x
    x = 25,663,170,745.69/185,262.22
  6. Step 6: Final answer
    x = 138,523.50

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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.