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Finding the Fourth Proportional to 113,693.40, 170,467.17 and 47,179.44

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Solution

The fourth proportional to 113,693.40, 170,467.17 and 47,179.44 is: 70,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,693.40 : 170,467.17 = 47,179.44 : x
  2. Step 2: Convert to fraction form
    113,693.40/170,467.17 = 47,179.44/x
  3. Step 3: Cross multiply
    113,693.40x = 170,467.17 × 47,179.44
  4. Step 4: Simplify right side
    113,693.40x = 8,042,545,618.98
  5. Step 5: Solve for x
    x = 8,042,545,618.98/113,693.40
  6. Step 6: Final answer
    x = 70,738.90

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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.