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Finding the Fourth Proportional to 223,876.20, 335,814.30 and 74,139.60

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Solution

The fourth proportional to 223,876.20, 335,814.30 and 74,139.60 is: 111,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,876.20 : 335,814.30 = 74,139.60 : x
  2. Step 2: Convert to fraction form
    223,876.20/335,814.30 = 74,139.60/x
  3. Step 3: Cross multiply
    223,876.20x = 335,814.30 × 74,139.60
  4. Step 4: Simplify right side
    223,876.20x = 24,897,137,876.28
  5. Step 5: Solve for x
    x = 24,897,137,876.28/223,876.20
  6. Step 6: Final answer
    x = 111,209.40

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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.