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Finding the Fourth Proportional to 103,793.78, 155,712.54 and 33,667.63

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Solution

The fourth proportional to 103,793.78, 155,712.54 and 33,667.63 is: 50,508.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,793.78 : 155,712.54 = 33,667.63 : x
  2. Step 2: Convert to fraction form
    103,793.78/155,712.54 = 33,667.63/x
  3. Step 3: Cross multiply
    103,793.78x = 155,712.54 × 33,667.63
  4. Step 4: Simplify right side
    103,793.78x = 5,242,472,183.08
  5. Step 5: Solve for x
    x = 5,242,472,183.08/103,793.78
  6. Step 6: Final answer
    x = 50,508.54

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1.5x scale

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.