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Finding the Fourth Proportional to 104,676.60, 156,966.30 and 45,481.80

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Solution

The fourth proportional to 104,676.60, 156,966.30 and 45,481.80 is: 68,201.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,676.60 : 156,966.30 = 45,481.80 : x
  2. Step 2: Convert to fraction form
    104,676.60/156,966.30 = 45,481.80/x
  3. Step 3: Cross multiply
    104,676.60x = 156,966.30 × 45,481.80
  4. Step 4: Simplify right side
    104,676.60x = 7,139,109,863.34
  5. Step 5: Solve for x
    x = 7,139,109,863.34/104,676.60
  6. Step 6: Final answer
    x = 68,201.58

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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.