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Finding the Fourth Proportional to 47,245.62, 70,868.52 and 44,358.78

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Solution

The fourth proportional to 47,245.62, 70,868.52 and 44,358.78 is: 66,538.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,245.62 : 70,868.52 = 44,358.78 : x
  2. Step 2: Convert to fraction form
    47,245.62/70,868.52 = 44,358.78/x
  3. Step 3: Cross multiply
    47,245.62x = 70,868.52 × 44,358.78
  4. Step 4: Simplify right side
    47,245.62x = 3,143,640,733.26
  5. Step 5: Solve for x
    x = 3,143,640,733.26/47,245.62
  6. Step 6: Final answer
    x = 66,538.25

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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.