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Finding the Fourth Proportional to 202,215.80, 303,323.70 and 61,956.20

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Solution

The fourth proportional to 202,215.80, 303,323.70 and 61,956.20 is: 92,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,215.80 : 303,323.70 = 61,956.20 : x
  2. Step 2: Convert to fraction form
    202,215.80/303,323.70 = 61,956.20/x
  3. Step 3: Cross multiply
    202,215.80x = 303,323.70 × 61,956.20
  4. Step 4: Simplify right side
    202,215.80x = 18,792,783,821.94
  5. Step 5: Solve for x
    x = 18,792,783,821.94/202,215.80
  6. Step 6: Final answer
    x = 92,934.30

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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.