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Finding the Fourth Proportional to 61,902.78, 85,427.88 and 35,044.74

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Solution

The fourth proportional to 61,902.78, 85,427.88 and 35,044.74 is: 48,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,902.78 : 85,427.88 = 35,044.74 : x
  2. Step 2: Convert to fraction form
    61,902.78/85,427.88 = 35,044.74/x
  3. Step 3: Cross multiply
    61,902.78x = 85,427.88 × 35,044.74
  4. Step 4: Simplify right side
    61,902.78x = 2,993,797,843.35
  5. Step 5: Solve for x
    x = 2,993,797,843.35/61,902.78
  6. Step 6: Final answer
    x = 48,362.90

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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.