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Finding the Fourth Proportional to 84,504.78, 126,748.91 and 22,175.28

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Solution

The fourth proportional to 84,504.78, 126,748.91 and 22,175.28 is: 33,260.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,504.78 : 126,748.91 = 22,175.28 : x
  2. Step 2: Convert to fraction form
    84,504.78/126,748.91 = 22,175.28/x
  3. Step 3: Cross multiply
    84,504.78x = 126,748.91 × 22,175.28
  4. Step 4: Simplify right side
    84,504.78x = 2,810,692,458.07
  5. Step 5: Solve for x
    x = 2,810,692,458.07/84,504.78
  6. Step 6: Final answer
    x = 33,260.75

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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.