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Finding the Fourth Proportional to 103,246.72, 154,896.72 and 33,126.64

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Solution

The fourth proportional to 103,246.72, 154,896.72 and 33,126.64 is: 49,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,246.72 : 154,896.72 = 33,126.64 : x
  2. Step 2: Convert to fraction form
    103,246.72/154,896.72 = 33,126.64/x
  3. Step 3: Cross multiply
    103,246.72x = 154,896.72 × 33,126.64
  4. Step 4: Simplify right side
    103,246.72x = 5,131,207,880.62
  5. Step 5: Solve for x
    x = 5,131,207,880.62/103,246.72
  6. Step 6: Final answer
    x = 49,698.51

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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.