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Finding the Fourth Proportional to 216,450.57, 298,696.22 and 120,958.05

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Solution

The fourth proportional to 216,450.57, 298,696.22 and 120,958.05 is: 166,919.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,450.57 : 298,696.22 = 120,958.05 : x
  2. Step 2: Convert to fraction form
    216,450.57/298,696.22 = 120,958.05/x
  3. Step 3: Cross multiply
    216,450.57x = 298,696.22 × 120,958.05
  4. Step 4: Simplify right side
    216,450.57x = 36,129,711,708.78
  5. Step 5: Solve for x
    x = 36,129,711,708.78/216,450.57
  6. Step 6: Final answer
    x = 166,919.00

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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.