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Finding the Fourth Proportional to 442,692.80, 664,039.20 and 110,268.80

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Solution

The fourth proportional to 442,692.80, 664,039.20 and 110,268.80 is: 165,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,692.80 : 664,039.20 = 110,268.80 : x
  2. Step 2: Convert to fraction form
    442,692.80/664,039.20 = 110,268.80/x
  3. Step 3: Cross multiply
    442,692.80x = 664,039.20 × 110,268.80
  4. Step 4: Simplify right side
    442,692.80x = 73,222,805,736.96
  5. Step 5: Solve for x
    x = 73,222,805,736.96/442,692.80
  6. Step 6: Final answer
    x = 165,403.20

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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.