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Finding the Fourth Proportional to 268,983.40, 403,329.30 and 111,033.40

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Solution

The fourth proportional to 268,983.40, 403,329.30 and 111,033.40 is: 166,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,983.40 : 403,329.30 = 111,033.40 : x
  2. Step 2: Convert to fraction form
    268,983.40/403,329.30 = 111,033.40/x
  3. Step 3: Cross multiply
    268,983.40x = 403,329.30 × 111,033.40
  4. Step 4: Simplify right side
    268,983.40x = 44,783,023,498.62
  5. Step 5: Solve for x
    x = 44,783,023,498.62/268,983.40
  6. Step 6: Final answer
    x = 166,489.92

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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.