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Finding the Fourth Proportional to 223,391.70, 335,087.55 and 213,023.70

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Solution

The fourth proportional to 223,391.70, 335,087.55 and 213,023.70 is: 319,535.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,391.70 : 335,087.55 = 213,023.70 : x
  2. Step 2: Convert to fraction form
    223,391.70/335,087.55 = 213,023.70/x
  3. Step 3: Cross multiply
    223,391.70x = 335,087.55 × 213,023.70
  4. Step 4: Simplify right side
    223,391.70x = 71,381,589,724.94
  5. Step 5: Solve for x
    x = 71,381,589,724.94/223,391.70
  6. Step 6: Final answer
    x = 319,535.55

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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.