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Finding the Fourth Proportional to 69,822.67, 104,750.41 and 19,903.49

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Solution

The fourth proportional to 69,822.67, 104,750.41 and 19,903.49 is: 29,859.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,822.67 : 104,750.41 = 19,903.49 : x
  2. Step 2: Convert to fraction form
    69,822.67/104,750.41 = 19,903.49/x
  3. Step 3: Cross multiply
    69,822.67x = 104,750.41 × 19,903.49
  4. Step 4: Simplify right side
    69,822.67x = 2,084,898,737.93
  5. Step 5: Solve for x
    x = 2,084,898,737.93/69,822.67
  6. Step 6: Final answer
    x = 29,859.91

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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.