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Finding the Fourth Proportional to 204,007.20, 305,319.60 and 204,007.20

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Solution

The fourth proportional to 204,007.20, 305,319.60 and 204,007.20 is: 305,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,007.20 : 305,319.60 = 204,007.20 : x
  2. Step 2: Convert to fraction form
    204,007.20/305,319.60 = 204,007.20/x
  3. Step 3: Cross multiply
    204,007.20x = 305,319.60 × 204,007.20
  4. Step 4: Simplify right side
    204,007.20x = 62,287,396,701.12
  5. Step 5: Solve for x
    x = 62,287,396,701.12/204,007.20
  6. Step 6: Final answer
    x = 305,319.60

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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.