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Finding the Fourth Proportional to 330,693.06, 496,028.58 and 143,704.56

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Solution

The fourth proportional to 330,693.06, 496,028.58 and 143,704.56 is: 215,552.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,693.06 : 496,028.58 = 143,704.56 : x
  2. Step 2: Convert to fraction form
    330,693.06/496,028.58 = 143,704.56/x
  3. Step 3: Cross multiply
    330,693.06x = 496,028.58 × 143,704.56
  4. Step 4: Simplify right side
    330,693.06x = 71,281,568,836.32
  5. Step 5: Solve for x
    x = 71,281,568,836.32/330,693.06
  6. Step 6: Final answer
    x = 215,552.06

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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.