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Finding the Fourth Proportional to 49,147.59, 73,721.44 and 12,211.59

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Solution

The fourth proportional to 49,147.59, 73,721.44 and 12,211.59 is: 18,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,147.59 : 73,721.44 = 12,211.59 : x
  2. Step 2: Convert to fraction form
    49,147.59/73,721.44 = 12,211.59/x
  3. Step 3: Cross multiply
    49,147.59x = 73,721.44 × 12,211.59
  4. Step 4: Simplify right side
    49,147.59x = 900,256,291.21
  5. Step 5: Solve for x
    x = 900,256,291.21/49,147.59
  6. Step 6: Final answer
    x = 18,317.40

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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.