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Finding the Fourth Proportional to 70,028.69, 104,865.62 and 43,426.62

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Solution

The fourth proportional to 70,028.69, 104,865.62 and 43,426.62 is: 65,029.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,028.69 : 104,865.62 = 43,426.62 : x
  2. Step 2: Convert to fraction form
    70,028.69/104,865.62 = 43,426.62/x
  3. Step 3: Cross multiply
    70,028.69x = 104,865.62 × 43,426.62
  4. Step 4: Simplify right side
    70,028.69x = 4,553,959,213.67
  5. Step 5: Solve for x
    x = 4,553,959,213.67/70,028.69
  6. Step 6: Final answer
    x = 65,029.91

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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.