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Finding the Fourth Proportional to 69,851.68, 104,793.78 and 19,932.46

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Solution

The fourth proportional to 69,851.68, 104,793.78 and 19,932.46 is: 29,903.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,851.68 : 104,793.78 = 19,932.46 : x
  2. Step 2: Convert to fraction form
    69,851.68/104,793.78 = 19,932.46/x
  3. Step 3: Cross multiply
    69,851.68x = 104,793.78 × 19,932.46
  4. Step 4: Simplify right side
    69,851.68x = 2,088,797,828.10
  5. Step 5: Solve for x
    x = 2,088,797,828.10/69,851.68
  6. Step 6: Final answer
    x = 29,903.33

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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.