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Finding the Fourth Proportional to 223,631.30, 335,630.55 and 221,881.70

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Solution

The fourth proportional to 223,631.30, 335,630.55 and 221,881.70 is: 333,004.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,631.30 : 335,630.55 = 221,881.70 : x
  2. Step 2: Convert to fraction form
    223,631.30/335,630.55 = 221,881.70/x
  3. Step 3: Cross multiply
    223,631.30x = 335,630.55 × 221,881.70
  4. Step 4: Simplify right side
    223,631.30x = 74,470,277,005.94
  5. Step 5: Solve for x
    x = 74,470,277,005.94/223,631.30
  6. Step 6: Final answer
    x = 333,004.71

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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.