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Finding the Fourth Proportional to 70,604.99, 105,958.47 and 40,983.29

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Solution

The fourth proportional to 70,604.99, 105,958.47 and 40,983.29 is: 61,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,604.99 : 105,958.47 = 40,983.29 : x
  2. Step 2: Convert to fraction form
    70,604.99/105,958.47 = 40,983.29/x
  3. Step 3: Cross multiply
    70,604.99x = 105,958.47 × 40,983.29
  4. Step 4: Simplify right side
    70,604.99x = 4,342,526,703.97
  5. Step 5: Solve for x
    x = 4,342,526,703.97/70,604.99
  6. Step 6: Final answer
    x = 61,504.53

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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.