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Finding the Fourth Proportional to 70,892.44, 106,371.60 and 28,801.54

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Solution

The fourth proportional to 70,892.44, 106,371.60 and 28,801.54 is: 43,215.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,892.44 : 106,371.60 = 28,801.54 : x
  2. Step 2: Convert to fraction form
    70,892.44/106,371.60 = 28,801.54/x
  3. Step 3: Cross multiply
    70,892.44x = 106,371.60 × 28,801.54
  4. Step 4: Simplify right side
    70,892.44x = 3,063,665,892.26
  5. Step 5: Solve for x
    x = 3,063,665,892.26/70,892.44
  6. Step 6: Final answer
    x = 43,215.69

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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.