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Finding the Fourth Proportional to 200,780.02, 301,197.81 and 67,698.34

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Solution

The fourth proportional to 200,780.02, 301,197.81 and 67,698.34 is: 101,556.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,780.02 : 301,197.81 = 67,698.34 : x
  2. Step 2: Convert to fraction form
    200,780.02/301,197.81 = 67,698.34/x
  3. Step 3: Cross multiply
    200,780.02x = 301,197.81 × 67,698.34
  4. Step 4: Simplify right side
    200,780.02x = 20,390,591,748.64
  5. Step 5: Solve for x
    x = 20,390,591,748.64/200,780.02
  6. Step 6: Final answer
    x = 101,556.88

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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.