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Finding the Fourth Proportional to 223,865.40, 335,798.10 and 221,791.80

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Solution

The fourth proportional to 223,865.40, 335,798.10 and 221,791.80 is: 332,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,865.40 : 335,798.10 = 221,791.80 : x
  2. Step 2: Convert to fraction form
    223,865.40/335,798.10 = 221,791.80/x
  3. Step 3: Cross multiply
    223,865.40x = 335,798.10 × 221,791.80
  4. Step 4: Simplify right side
    223,865.40x = 74,477,265,035.58
  5. Step 5: Solve for x
    x = 74,477,265,035.58/223,865.40
  6. Step 6: Final answer
    x = 332,687.70

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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.