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Finding the Fourth Proportional to 449,952.80, 674,937.20 and 134,413.60

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Solution

The fourth proportional to 449,952.80, 674,937.20 and 134,413.60 is: 201,622.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,952.80 : 674,937.20 = 134,413.60 : x
  2. Step 2: Convert to fraction form
    449,952.80/674,937.20 = 134,413.60/x
  3. Step 3: Cross multiply
    449,952.80x = 674,937.20 × 134,413.60
  4. Step 4: Simplify right side
    449,952.80x = 90,720,738,825.92
  5. Step 5: Solve for x
    x = 90,720,738,825.92/449,952.80
  6. Step 6: Final answer
    x = 201,622.79

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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.