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Finding the Fourth Proportional to 425,769.44, 638,468.68 and 122,096.60

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Solution

The fourth proportional to 425,769.44, 638,468.68 and 122,096.60 is: 183,091.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,769.44 : 638,468.68 = 122,096.60 : x
  2. Step 2: Convert to fraction form
    425,769.44/638,468.68 = 122,096.60/x
  3. Step 3: Cross multiply
    425,769.44x = 638,468.68 × 122,096.60
  4. Step 4: Simplify right side
    425,769.44x = 77,954,855,034.49
  5. Step 5: Solve for x
    x = 77,954,855,034.49/425,769.44
  6. Step 6: Final answer
    x = 183,091.71

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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.