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Finding the Fourth Proportional to 61,450.53, 92,230.74 and 31,485.21

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Solution

The fourth proportional to 61,450.53, 92,230.74 and 31,485.21 is: 47,255.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,450.53 : 92,230.74 = 31,485.21 : x
  2. Step 2: Convert to fraction form
    61,450.53/92,230.74 = 31,485.21/x
  3. Step 3: Cross multiply
    61,450.53x = 92,230.74 × 31,485.21
  4. Step 4: Simplify right side
    61,450.53x = 2,903,904,217.36
  5. Step 5: Solve for x
    x = 2,903,904,217.36/61,450.53
  6. Step 6: Final answer
    x = 47,255.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.