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Finding the Fourth Proportional to 69,435.13, 104,013.24 and 31,943.08

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Solution

The fourth proportional to 69,435.13, 104,013.24 and 31,943.08 is: 47,850.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,435.13 : 104,013.24 = 31,943.08 : x
  2. Step 2: Convert to fraction form
    69,435.13/104,013.24 = 31,943.08/x
  3. Step 3: Cross multiply
    69,435.13x = 104,013.24 × 31,943.08
  4. Step 4: Simplify right side
    69,435.13x = 3,322,503,246.38
  5. Step 5: Solve for x
    x = 3,322,503,246.38/69,435.13
  6. Step 6: Final answer
    x = 47,850.46

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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.