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Finding the Fourth Proportional to 77,413.56, 106,832.61 and 43,425.54

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Solution

The fourth proportional to 77,413.56, 106,832.61 and 43,425.54 is: 59,928.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,413.56 : 106,832.61 = 43,425.54 : x
  2. Step 2: Convert to fraction form
    77,413.56/106,832.61 = 43,425.54/x
  3. Step 3: Cross multiply
    77,413.56x = 106,832.61 × 43,425.54
  4. Step 4: Simplify right side
    77,413.56x = 4,639,263,778.86
  5. Step 5: Solve for x
    x = 4,639,263,778.86/77,413.56
  6. Step 6: Final answer
    x = 59,928.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.