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Finding the Fourth Proportional to 269,699.50, 372,325.23 and 197,020.80

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Solution

The fourth proportional to 269,699.50, 372,325.23 and 197,020.80 is: 271,990.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,699.50 : 372,325.23 = 197,020.80 : x
  2. Step 2: Convert to fraction form
    269,699.50/372,325.23 = 197,020.80/x
  3. Step 3: Cross multiply
    269,699.50x = 372,325.23 × 197,020.80
  4. Step 4: Simplify right side
    269,699.50x = 73,355,814,674.78
  5. Step 5: Solve for x
    x = 73,355,814,674.78/269,699.50
  6. Step 6: Final answer
    x = 271,990.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.