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Finding the Fourth Proportional to 122,904.26, 169,611.11 and 69,191.24

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Solution

The fourth proportional to 122,904.26, 169,611.11 and 69,191.24 is: 95,485.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,904.26 : 169,611.11 = 69,191.24 : x
  2. Step 2: Convert to fraction form
    122,904.26/169,611.11 = 69,191.24/x
  3. Step 3: Cross multiply
    122,904.26x = 169,611.11 × 69,191.24
  4. Step 4: Simplify right side
    122,904.26x = 11,735,603,018.68
  5. Step 5: Solve for x
    x = 11,735,603,018.68/122,904.26
  6. Step 6: Final answer
    x = 95,485.73

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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.