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Finding the Fourth Proportional to 69,892.36, 104,883.90 and 30,474.52

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Solution

The fourth proportional to 69,892.36, 104,883.90 and 30,474.52 is: 45,731.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,892.36 : 104,883.90 = 30,474.52 : x
  2. Step 2: Convert to fraction form
    69,892.36/104,883.90 = 30,474.52/x
  3. Step 3: Cross multiply
    69,892.36x = 104,883.90 × 30,474.52
  4. Step 4: Simplify right side
    69,892.36x = 3,196,286,508.23
  5. Step 5: Solve for x
    x = 3,196,286,508.23/69,892.36
  6. Step 6: Final answer
    x = 45,731.56

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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.