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Finding the Fourth Proportional to 353,413.37, 530,117.57 and 143,048.27

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Solution

The fourth proportional to 353,413.37, 530,117.57 and 143,048.27 is: 214,571.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,413.37 : 530,117.57 = 143,048.27 : x
  2. Step 2: Convert to fraction form
    353,413.37/530,117.57 = 143,048.27/x
  3. Step 3: Cross multiply
    353,413.37x = 530,117.57 × 143,048.27
  4. Step 4: Simplify right side
    353,413.37x = 75,832,397,919.27
  5. Step 5: Solve for x
    x = 75,832,397,919.27/353,413.37
  6. Step 6: Final answer
    x = 214,571.39

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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.