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Finding the Fourth Proportional to 122,749.44, 169,380.46 and 69,033.30

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Solution

The fourth proportional to 122,749.44, 169,380.46 and 69,033.30 is: 95,258.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,749.44 : 169,380.46 = 69,033.30 : x
  2. Step 2: Convert to fraction form
    122,749.44/169,380.46 = 69,033.30/x
  3. Step 3: Cross multiply
    122,749.44x = 169,380.46 × 69,033.30
  4. Step 4: Simplify right side
    122,749.44x = 11,692,892,109.32
  5. Step 5: Solve for x
    x = 11,692,892,109.32/122,749.44
  6. Step 6: Final answer
    x = 95,258.21

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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.