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Finding the Fourth Proportional to 418,709.44, 627,969.82 and 119,183.38

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Solution

The fourth proportional to 418,709.44, 627,969.82 and 119,183.38 is: 178,748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,709.44 : 627,969.82 = 119,183.38 : x
  2. Step 2: Convert to fraction form
    418,709.44/627,969.82 = 119,183.38/x
  3. Step 3: Cross multiply
    418,709.44x = 627,969.82 × 119,183.38
  4. Step 4: Simplify right side
    418,709.44x = 74,843,565,685.59
  5. Step 5: Solve for x
    x = 74,843,565,685.59/418,709.44
  6. Step 6: Final answer
    x = 178,748.22

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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.