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Finding the Fourth Proportional to 69,856.58, 104,792.37 and 29,879.72

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Solution

The fourth proportional to 69,856.58, 104,792.37 and 29,879.72 is: 44,822.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,856.58 : 104,792.37 = 29,879.72 : x
  2. Step 2: Convert to fraction form
    69,856.58/104,792.37 = 29,879.72/x
  3. Step 3: Cross multiply
    69,856.58x = 104,792.37 × 29,879.72
  4. Step 4: Simplify right side
    69,856.58x = 3,131,166,149.77
  5. Step 5: Solve for x
    x = 3,131,166,149.77/69,856.58
  6. Step 6: Final answer
    x = 44,822.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.