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Finding the Fourth Proportional to 69,155.06, 103,669.22 and 22,383.86

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Solution

The fourth proportional to 69,155.06, 103,669.22 and 22,383.86 is: 33,555.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,155.06 : 103,669.22 = 22,383.86 : x
  2. Step 2: Convert to fraction form
    69,155.06/103,669.22 = 22,383.86/x
  3. Step 3: Cross multiply
    69,155.06x = 103,669.22 × 22,383.86
  4. Step 4: Simplify right side
    69,155.06x = 2,320,517,306.79
  5. Step 5: Solve for x
    x = 2,320,517,306.79/69,155.06
  6. Step 6: Final answer
    x = 33,555.28

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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.