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Finding the Fourth Proportional to 61,760.72, 85,230.09 and 33,466.46

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Solution

The fourth proportional to 61,760.72, 85,230.09 and 33,466.46 is: 46,183.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,760.72 : 85,230.09 = 33,466.46 : x
  2. Step 2: Convert to fraction form
    61,760.72/85,230.09 = 33,466.46/x
  3. Step 3: Cross multiply
    61,760.72x = 85,230.09 × 33,466.46
  4. Step 4: Simplify right side
    61,760.72x = 2,852,349,397.78
  5. Step 5: Solve for x
    x = 2,852,349,397.78/61,760.72
  6. Step 6: Final answer
    x = 46,183.88

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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.