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Finding the Fourth Proportional to 193,487.00, 290,208.60 and 67,103.91

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Solution

The fourth proportional to 193,487.00, 290,208.60 and 67,103.91 is: 100,648.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,487.00 : 290,208.60 = 67,103.91 : x
  2. Step 2: Convert to fraction form
    193,487.00/290,208.60 = 67,103.91/x
  3. Step 3: Cross multiply
    193,487.00x = 290,208.60 × 67,103.91
  4. Step 4: Simplify right side
    193,487.00x = 19,474,131,775.63
  5. Step 5: Solve for x
    x = 19,474,131,775.63/193,487.00
  6. Step 6: Final answer
    x = 100,648.27

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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.