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Finding the Fourth Proportional to 66,907.34, 100,377.89 and 47,224.34

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Solution

The fourth proportional to 66,907.34, 100,377.89 and 47,224.34 is: 70,848.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,907.34 : 100,377.89 = 47,224.34 : x
  2. Step 2: Convert to fraction form
    66,907.34/100,377.89 = 47,224.34/x
  3. Step 3: Cross multiply
    66,907.34x = 100,377.89 × 47,224.34
  4. Step 4: Simplify right side
    66,907.34x = 4,740,279,369.72
  5. Step 5: Solve for x
    x = 4,740,279,369.72/66,907.34
  6. Step 6: Final answer
    x = 70,848.42

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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.