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Finding the Fourth Proportional to 89,078.96, 122,928.99 and 48,793.39

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Solution

The fourth proportional to 89,078.96, 122,928.99 and 48,793.39 is: 67,334.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,078.96 : 122,928.99 = 48,793.39 : x
  2. Step 2: Convert to fraction form
    89,078.96/122,928.99 = 48,793.39/x
  3. Step 3: Cross multiply
    89,078.96x = 122,928.99 × 48,793.39
  4. Step 4: Simplify right side
    89,078.96x = 5,998,122,151.38
  5. Step 5: Solve for x
    x = 5,998,122,151.38/89,078.96
  6. Step 6: Final answer
    x = 67,334.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.