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Finding the Fourth Proportional to 67,450.92, 101,196.60 and 31,939.32

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Solution

The fourth proportional to 67,450.92, 101,196.60 and 31,939.32 is: 47,918.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,450.92 : 101,196.60 = 31,939.32 : x
  2. Step 2: Convert to fraction form
    67,450.92/101,196.60 = 31,939.32/x
  3. Step 3: Cross multiply
    67,450.92x = 101,196.60 × 31,939.32
  4. Step 4: Simplify right side
    67,450.92x = 3,232,150,590.31
  5. Step 5: Solve for x
    x = 3,232,150,590.31/67,450.92
  6. Step 6: Final answer
    x = 47,918.55

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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.