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Finding the Fourth Proportional to 446,861.21, 670,335.56 and 147,219.53

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Solution

The fourth proportional to 446,861.21, 670,335.56 and 147,219.53 is: 220,843.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,861.21 : 670,335.56 = 147,219.53 : x
  2. Step 2: Convert to fraction form
    446,861.21/670,335.56 = 147,219.53/x
  3. Step 3: Cross multiply
    446,861.21x = 670,335.56 × 147,219.53
  4. Step 4: Simplify right side
    446,861.21x = 98,686,485,349.39
  5. Step 5: Solve for x
    x = 98,686,485,349.39/446,861.21
  6. Step 6: Final answer
    x = 220,843.71

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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.