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Finding the Fourth Proportional to 61,789.68, 85,266.41 and 34,930.62

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Solution

The fourth proportional to 61,789.68, 85,266.41 and 34,930.62 is: 48,202.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,789.68 : 85,266.41 = 34,930.62 : x
  2. Step 2: Convert to fraction form
    61,789.68/85,266.41 = 34,930.62/x
  3. Step 3: Cross multiply
    61,789.68x = 85,266.41 × 34,930.62
  4. Step 4: Simplify right side
    61,789.68x = 2,978,408,391.82
  5. Step 5: Solve for x
    x = 2,978,408,391.82/61,789.68
  6. Step 6: Final answer
    x = 48,202.36

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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.