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Finding the Fourth Proportional to 70,788.02, 106,028.88 and 33,291.92

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Solution

The fourth proportional to 70,788.02, 106,028.88 and 33,291.92 is: 49,865.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,788.02 : 106,028.88 = 33,291.92 : x
  2. Step 2: Convert to fraction form
    70,788.02/106,028.88 = 33,291.92/x
  3. Step 3: Cross multiply
    70,788.02x = 106,028.88 × 33,291.92
  4. Step 4: Simplify right side
    70,788.02x = 3,529,904,990.65
  5. Step 5: Solve for x
    x = 3,529,904,990.65/70,788.02
  6. Step 6: Final answer
    x = 49,865.85

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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.