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Finding the Fourth Proportional to 104,578.40, 156,871.28 and 33,503.20

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Solution

The fourth proportional to 104,578.40, 156,871.28 and 33,503.20 is: 50,255.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,578.40 : 156,871.28 = 33,503.20 : x
  2. Step 2: Convert to fraction form
    104,578.40/156,871.28 = 33,503.20/x
  3. Step 3: Cross multiply
    104,578.40x = 156,871.28 × 33,503.20
  4. Step 4: Simplify right side
    104,578.40x = 5,255,689,559.68
  5. Step 5: Solve for x
    x = 5,255,689,559.68/104,578.40
  6. Step 6: Final answer
    x = 50,255.97

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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.