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Finding the Fourth Proportional to 202,502.60, 303,753.90 and 198,128.60

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Solution

The fourth proportional to 202,502.60, 303,753.90 and 198,128.60 is: 297,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,502.60 : 303,753.90 = 198,128.60 : x
  2. Step 2: Convert to fraction form
    202,502.60/303,753.90 = 198,128.60/x
  3. Step 3: Cross multiply
    202,502.60x = 303,753.90 × 198,128.60
  4. Step 4: Simplify right side
    202,502.60x = 60,182,334,951.54
  5. Step 5: Solve for x
    x = 60,182,334,951.54/202,502.60
  6. Step 6: Final answer
    x = 297,192.90

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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.