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Finding the Fourth Proportional to 61,669.85, 85,104.40 and 33,375.54

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Solution

The fourth proportional to 61,669.85, 85,104.40 and 33,375.54 is: 46,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,669.85 : 85,104.40 = 33,375.54 : x
  2. Step 2: Convert to fraction form
    61,669.85/85,104.40 = 33,375.54/x
  3. Step 3: Cross multiply
    61,669.85x = 85,104.40 × 33,375.54
  4. Step 4: Simplify right side
    61,669.85x = 2,840,405,306.38
  5. Step 5: Solve for x
    x = 2,840,405,306.38/61,669.85
  6. Step 6: Final answer
    x = 46,058.25

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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.