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Finding the Fourth Proportional to 319,667.69, 479,246.90 and 184,578.57

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Solution

The fourth proportional to 319,667.69, 479,246.90 and 184,578.57 is: 276,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,667.69 : 479,246.90 = 184,578.57 : x
  2. Step 2: Convert to fraction form
    319,667.69/479,246.90 = 184,578.57/x
  3. Step 3: Cross multiply
    319,667.69x = 479,246.90 × 184,578.57
  4. Step 4: Simplify right side
    319,667.69x = 88,458,709,461.30
  5. Step 5: Solve for x
    x = 88,458,709,461.30/319,667.69
  6. Step 6: Final answer
    x = 276,720.83

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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.