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Finding the Fourth Proportional to 227,336.72, 340,899.84 and 85,076.48

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Solution

The fourth proportional to 227,336.72, 340,899.84 and 85,076.48 is: 127,575.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,336.72 : 340,899.84 = 85,076.48 : x
  2. Step 2: Convert to fraction form
    227,336.72/340,899.84 = 85,076.48/x
  3. Step 3: Cross multiply
    227,336.72x = 340,899.84 × 85,076.48
  4. Step 4: Simplify right side
    227,336.72x = 29,002,559,272.01
  5. Step 5: Solve for x
    x = 29,002,559,272.01/227,336.72
  6. Step 6: Final answer
    x = 127,575.34

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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.