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Finding the Fourth Proportional to 107,652.34, 161,481.60 and 28,766.68

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Solution

The fourth proportional to 107,652.34, 161,481.60 and 28,766.68 is: 43,150.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,652.34 : 161,481.60 = 28,766.68 : x
  2. Step 2: Convert to fraction form
    107,652.34/161,481.60 = 28,766.68/x
  3. Step 3: Cross multiply
    107,652.34x = 161,481.60 × 28,766.68
  4. Step 4: Simplify right side
    107,652.34x = 4,645,289,513.09
  5. Step 5: Solve for x
    x = 4,645,289,513.09/107,652.34
  6. Step 6: Final answer
    x = 43,150.85

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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.