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Finding the Fourth Proportional to 112,487.80, 168,734.40 and 33,604.60

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Solution

The fourth proportional to 112,487.80, 168,734.40 and 33,604.60 is: 50,407.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,487.80 : 168,734.40 = 33,604.60 : x
  2. Step 2: Convert to fraction form
    112,487.80/168,734.40 = 33,604.60/x
  3. Step 3: Cross multiply
    112,487.80x = 168,734.40 × 33,604.60
  4. Step 4: Simplify right side
    112,487.80x = 5,670,252,018.24
  5. Step 5: Solve for x
    x = 5,670,252,018.24/112,487.80
  6. Step 6: Final answer
    x = 50,407.71

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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.