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Finding the Fourth Proportional to 124,212.92, 171,413.90 and 67,624.52

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Solution

The fourth proportional to 124,212.92, 171,413.90 and 67,624.52 is: 93,321.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,212.92 : 171,413.90 = 67,624.52 : x
  2. Step 2: Convert to fraction form
    124,212.92/171,413.90 = 67,624.52/x
  3. Step 3: Cross multiply
    124,212.92x = 171,413.90 × 67,624.52
  4. Step 4: Simplify right side
    124,212.92x = 11,591,782,708.83
  5. Step 5: Solve for x
    x = 11,591,782,708.83/124,212.92
  6. Step 6: Final answer
    x = 93,321.88

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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.