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Finding the Fourth Proportional to 201,215.60, 301,714.05 and 68,027.30

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Solution

The fourth proportional to 201,215.60, 301,714.05 and 68,027.30 is: 102,003.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,215.60 : 301,714.05 = 68,027.30 : x
  2. Step 2: Convert to fraction form
    201,215.60/301,714.05 = 68,027.30/x
  3. Step 3: Cross multiply
    201,215.60x = 301,714.05 × 68,027.30
  4. Step 4: Simplify right side
    201,215.60x = 20,524,792,193.57
  5. Step 5: Solve for x
    x = 20,524,792,193.57/201,215.60
  6. Step 6: Final answer
    x = 102,003.98

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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.