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Finding the Fourth Proportional to 433,933.80, 650,840.70 and 134,620.20

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Solution

The fourth proportional to 433,933.80, 650,840.70 and 134,620.20 is: 201,911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,933.80 : 650,840.70 = 134,620.20 : x
  2. Step 2: Convert to fraction form
    433,933.80/650,840.70 = 134,620.20/x
  3. Step 3: Cross multiply
    433,933.80x = 650,840.70 × 134,620.20
  4. Step 4: Simplify right side
    433,933.80x = 87,616,305,202.14
  5. Step 5: Solve for x
    x = 87,616,305,202.14/433,933.80
  6. Step 6: Final answer
    x = 201,911.69

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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.