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Finding the Fourth Proportional to 221,898.44, 306,219.89 and 119,923.57

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Solution

The fourth proportional to 221,898.44, 306,219.89 and 119,923.57 is: 165,494.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,898.44 : 306,219.89 = 119,923.57 : x
  2. Step 2: Convert to fraction form
    221,898.44/306,219.89 = 119,923.57/x
  3. Step 3: Cross multiply
    221,898.44x = 306,219.89 × 119,923.57
  4. Step 4: Simplify right side
    221,898.44x = 36,722,982,413.81
  5. Step 5: Solve for x
    x = 36,722,982,413.81/221,898.44
  6. Step 6: Final answer
    x = 165,494.55

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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.