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Finding the Fourth Proportional to 444,667.68, 667,019.97 and 129,124.58

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Solution

The fourth proportional to 444,667.68, 667,019.97 and 129,124.58 is: 193,692.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,667.68 : 667,019.97 = 129,124.58 : x
  2. Step 2: Convert to fraction form
    444,667.68/667,019.97 = 129,124.58/x
  3. Step 3: Cross multiply
    444,667.68x = 667,019.97 × 129,124.58
  4. Step 4: Simplify right side
    444,667.68x = 86,128,670,142.76
  5. Step 5: Solve for x
    x = 86,128,670,142.76/444,667.68
  6. Step 6: Final answer
    x = 193,692.22

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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.