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Finding the Fourth Proportional to 85,469.44, 117,941.76 and 47,228.57

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Solution

The fourth proportional to 85,469.44, 117,941.76 and 47,228.57 is: 65,172.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,469.44 : 117,941.76 = 47,228.57 : x
  2. Step 2: Convert to fraction form
    85,469.44/117,941.76 = 47,228.57/x
  3. Step 3: Cross multiply
    85,469.44x = 117,941.76 × 47,228.57
  4. Step 4: Simplify right side
    85,469.44x = 5,570,220,454.24
  5. Step 5: Solve for x
    x = 5,570,220,454.24/85,469.44
  6. Step 6: Final answer
    x = 65,172.07

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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.