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Finding the Fourth Proportional to 223,958.28, 335,973.06 and 74,203.86

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Solution

The fourth proportional to 223,958.28, 335,973.06 and 74,203.86 is: 111,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,958.28 : 335,973.06 = 74,203.86 : x
  2. Step 2: Convert to fraction form
    223,958.28/335,973.06 = 74,203.86/x
  3. Step 3: Cross multiply
    223,958.28x = 335,973.06 × 74,203.86
  4. Step 4: Simplify right side
    223,958.28x = 24,930,497,908.01
  5. Step 5: Solve for x
    x = 24,930,497,908.01/223,958.28
  6. Step 6: Final answer
    x = 111,317.60

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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.