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Finding the Fourth Proportional to 221,622.57, 332,433.84 and 55,410.57

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Solution

The fourth proportional to 221,622.57, 332,433.84 and 55,410.57 is: 83,115.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,622.57 : 332,433.84 = 55,410.57 : x
  2. Step 2: Convert to fraction form
    221,622.57/332,433.84 = 55,410.57/x
  3. Step 3: Cross multiply
    221,622.57x = 332,433.84 × 55,410.57
  4. Step 4: Simplify right side
    221,622.57x = 18,420,348,561.69
  5. Step 5: Solve for x
    x = 18,420,348,561.69/221,622.57
  6. Step 6: Final answer
    x = 83,115.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.