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Finding the Fourth Proportional to 115,529.80, 173,294.70 and 36,650.20

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Solution

The fourth proportional to 115,529.80, 173,294.70 and 36,650.20 is: 54,975.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,529.80 : 173,294.70 = 36,650.20 : x
  2. Step 2: Convert to fraction form
    115,529.80/173,294.70 = 36,650.20/x
  3. Step 3: Cross multiply
    115,529.80x = 173,294.70 × 36,650.20
  4. Step 4: Simplify right side
    115,529.80x = 6,351,285,413.94
  5. Step 5: Solve for x
    x = 6,351,285,413.94/115,529.80
  6. Step 6: Final answer
    x = 54,975.30

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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.