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Finding the Fourth Proportional to 202,103.80, 302,637.30 and 192,772.60

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Solution

The fourth proportional to 202,103.80, 302,637.30 and 192,772.60 is: 288,664.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,103.80 : 302,637.30 = 192,772.60 : x
  2. Step 2: Convert to fraction form
    202,103.80/302,637.30 = 192,772.60/x
  3. Step 3: Cross multiply
    202,103.80x = 302,637.30 × 192,772.60
  4. Step 4: Simplify right side
    202,103.80x = 58,340,179,177.98
  5. Step 5: Solve for x
    x = 58,340,179,177.98/202,103.80
  6. Step 6: Final answer
    x = 288,664.43

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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.