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Finding the Fourth Proportional to 111,562.60, 166,998.30 and 64,676.20

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Solution

The fourth proportional to 111,562.60, 166,998.30 and 64,676.20 is: 96,813.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,562.60 : 166,998.30 = 64,676.20 : x
  2. Step 2: Convert to fraction form
    111,562.60/166,998.30 = 64,676.20/x
  3. Step 3: Cross multiply
    111,562.60x = 166,998.30 × 64,676.20
  4. Step 4: Simplify right side
    111,562.60x = 10,800,815,450.46
  5. Step 5: Solve for x
    x = 10,800,815,450.46/111,562.60
  6. Step 6: Final answer
    x = 96,813.95

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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.