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Finding the Fourth Proportional to 61,709.40, 85,163.94 and 34,858.44

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Solution

The fourth proportional to 61,709.40, 85,163.94 and 34,858.44 is: 48,107.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,709.40 : 85,163.94 = 34,858.44 : x
  2. Step 2: Convert to fraction form
    61,709.40/85,163.94 = 34,858.44/x
  3. Step 3: Cross multiply
    61,709.40x = 85,163.94 × 34,858.44
  4. Step 4: Simplify right side
    61,709.40x = 2,968,682,092.65
  5. Step 5: Solve for x
    x = 2,968,682,092.65/61,709.40
  6. Step 6: Final answer
    x = 48,107.45

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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.