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Finding the Fourth Proportional to 112,420.80, 168,609.60 and 33,537.60

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Solution

The fourth proportional to 112,420.80, 168,609.60 and 33,537.60 is: 50,299.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,420.80 : 168,609.60 = 33,537.60 : x
  2. Step 2: Convert to fraction form
    112,420.80/168,609.60 = 33,537.60/x
  3. Step 3: Cross multiply
    112,420.80x = 168,609.60 × 33,537.60
  4. Step 4: Simplify right side
    112,420.80x = 5,654,761,320.96
  5. Step 5: Solve for x
    x = 5,654,761,320.96/112,420.80
  6. Step 6: Final answer
    x = 50,299.96

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1.5x scale

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.