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Finding the Fourth Proportional to 221,340.93, 332,029.64 and 71,605.27

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Solution

The fourth proportional to 221,340.93, 332,029.64 and 71,605.27 is: 107,413.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,340.93 : 332,029.64 = 71,605.27 : x
  2. Step 2: Convert to fraction form
    221,340.93/332,029.64 = 71,605.27/x
  3. Step 3: Cross multiply
    221,340.93x = 332,029.64 × 71,605.27
  4. Step 4: Simplify right side
    221,340.93x = 23,775,072,020.20
  5. Step 5: Solve for x
    x = 23,775,072,020.20/221,340.93
  6. Step 6: Final answer
    x = 107,413.81

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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.