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Finding the Fourth Proportional to 383,796.80, 575,209.20 and 146,823.20

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Solution

The fourth proportional to 383,796.80, 575,209.20 and 146,823.20 is: 220,048.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,796.80 : 575,209.20 = 146,823.20 : x
  2. Step 2: Convert to fraction form
    383,796.80/575,209.20 = 146,823.20/x
  3. Step 3: Cross multiply
    383,796.80x = 575,209.20 × 146,823.20
  4. Step 4: Simplify right side
    383,796.80x = 84,454,055,413.44
  5. Step 5: Solve for x
    x = 84,454,055,413.44/383,796.80
  6. Step 6: Final answer
    x = 220,048.88

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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.