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Finding the Fourth Proportional to 61,698.70, 85,144.23 and 33,404.41

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Solution

The fourth proportional to 61,698.70, 85,144.23 and 33,404.41 is: 46,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,698.70 : 85,144.23 = 33,404.41 : x
  2. Step 2: Convert to fraction form
    61,698.70/85,144.23 = 33,404.41/x
  3. Step 3: Cross multiply
    61,698.70x = 85,144.23 × 33,404.41
  4. Step 4: Simplify right side
    61,698.70x = 2,844,192,768.05
  5. Step 5: Solve for x
    x = 2,844,192,768.05/61,698.70
  6. Step 6: Final answer
    x = 46,098.10

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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.