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Finding the Fourth Proportional to 268,933.80, 403,400.70 and 111,469.80

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Solution

The fourth proportional to 268,933.80, 403,400.70 and 111,469.80 is: 167,204.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,933.80 : 403,400.70 = 111,469.80 : x
  2. Step 2: Convert to fraction form
    268,933.80/403,400.70 = 111,469.80/x
  3. Step 3: Cross multiply
    268,933.80x = 403,400.70 × 111,469.80
  4. Step 4: Simplify right side
    268,933.80x = 44,966,995,348.86
  5. Step 5: Solve for x
    x = 44,966,995,348.86/268,933.80
  6. Step 6: Final answer
    x = 167,204.70

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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.