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Finding the Fourth Proportional to 61,469.52, 84,662.28 and 53,071.44

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Solution

The fourth proportional to 61,469.52, 84,662.28 and 53,071.44 is: 73,095.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,469.52 : 84,662.28 = 53,071.44 : x
  2. Step 2: Convert to fraction form
    61,469.52/84,662.28 = 53,071.44/x
  3. Step 3: Cross multiply
    61,469.52x = 84,662.28 × 53,071.44
  4. Step 4: Simplify right side
    61,469.52x = 4,493,149,113.28
  5. Step 5: Solve for x
    x = 4,493,149,113.28/61,469.52
  6. Step 6: Final answer
    x = 73,095.56

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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.