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Finding the Fourth Proportional to 223,219.80, 335,088.90 and 221,664.60

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Solution

The fourth proportional to 223,219.80, 335,088.90 and 221,664.60 is: 332,754.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,219.80 : 335,088.90 = 221,664.60 : x
  2. Step 2: Convert to fraction form
    223,219.80/335,088.90 = 221,664.60/x
  3. Step 3: Cross multiply
    223,219.80x = 335,088.90 × 221,664.60
  4. Step 4: Simplify right side
    223,219.80x = 74,277,346,982.94
  5. Step 5: Solve for x
    x = 74,277,346,982.94/223,219.80
  6. Step 6: Final answer
    x = 332,754.29

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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.