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Finding the Fourth Proportional to 61,221.26, 84,485.50 and 35,745.14

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Solution

The fourth proportional to 61,221.26, 84,485.50 and 35,745.14 is: 49,328.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,221.26 : 84,485.50 = 35,745.14 : x
  2. Step 2: Convert to fraction form
    61,221.26/84,485.50 = 35,745.14/x
  3. Step 3: Cross multiply
    61,221.26x = 84,485.50 × 35,745.14
  4. Step 4: Simplify right side
    61,221.26x = 3,019,946,025.47
  5. Step 5: Solve for x
    x = 3,019,946,025.47/61,221.26
  6. Step 6: Final answer
    x = 49,328.39

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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.