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Finding the Fourth Proportional to 202,323.90, 303,522.30 and 84,007.20

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Solution

The fourth proportional to 202,323.90, 303,522.30 and 84,007.20 is: 126,025.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,323.90 : 303,522.30 = 84,007.20 : x
  2. Step 2: Convert to fraction form
    202,323.90/303,522.30 = 84,007.20/x
  3. Step 3: Cross multiply
    202,323.90x = 303,522.30 × 84,007.20
  4. Step 4: Simplify right side
    202,323.90x = 25,498,058,560.56
  5. Step 5: Solve for x
    x = 25,498,058,560.56/202,323.90
  6. Step 6: Final answer
    x = 126,025.93

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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.