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Finding the Fourth Proportional to 322,656.70, 445,247.95 and 179,413.66

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Solution

The fourth proportional to 322,656.70, 445,247.95 and 179,413.66 is: 247,580.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,656.70 : 445,247.95 = 179,413.66 : x
  2. Step 2: Convert to fraction form
    322,656.70/445,247.95 = 179,413.66/x
  3. Step 3: Cross multiply
    322,656.70x = 445,247.95 × 179,413.66
  4. Step 4: Simplify right side
    322,656.70x = 79,883,565,430.12
  5. Step 5: Solve for x
    x = 79,883,565,430.12/322,656.70
  6. Step 6: Final answer
    x = 247,580.68

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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.