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Finding the Fourth Proportional to 70,604.11, 105,930.47 and 44,278.03

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Solution

The fourth proportional to 70,604.11, 105,930.47 and 44,278.03 is: 66,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,604.11 : 105,930.47 = 44,278.03 : x
  2. Step 2: Convert to fraction form
    70,604.11/105,930.47 = 44,278.03/x
  3. Step 3: Cross multiply
    70,604.11x = 105,930.47 × 44,278.03
  4. Step 4: Simplify right side
    70,604.11x = 4,690,392,528.57
  5. Step 5: Solve for x
    x = 4,690,392,528.57/70,604.11
  6. Step 6: Final answer
    x = 66,432.29

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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.