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Finding the Fourth Proportional to 122,873.22, 169,531.11 and 69,155.10

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Solution

The fourth proportional to 122,873.22, 169,531.11 and 69,155.10 is: 95,414.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,873.22 : 169,531.11 = 69,155.10 : x
  2. Step 2: Convert to fraction form
    122,873.22/169,531.11 = 69,155.10/x
  3. Step 3: Cross multiply
    122,873.22x = 169,531.11 × 69,155.10
  4. Step 4: Simplify right side
    122,873.22x = 11,723,940,865.16
  5. Step 5: Solve for x
    x = 11,723,940,865.16/122,873.22
  6. Step 6: Final answer
    x = 95,414.94

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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.