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Finding the Fourth Proportional to 221,268.56, 331,904.04 and 55,056.56

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Solution

The fourth proportional to 221,268.56, 331,904.04 and 55,056.56 is: 82,585.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,268.56 : 331,904.04 = 55,056.56 : x
  2. Step 2: Convert to fraction form
    221,268.56/331,904.04 = 55,056.56/x
  3. Step 3: Cross multiply
    221,268.56x = 331,904.04 × 55,056.56
  4. Step 4: Simplify right side
    221,268.56x = 18,273,494,692.50
  5. Step 5: Solve for x
    x = 18,273,494,692.50/221,268.56
  6. Step 6: Final answer
    x = 82,585.14

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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.