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Finding the Fourth Proportional to 201,033.36, 301,503.98 and 120,003.28

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Solution

The fourth proportional to 201,033.36, 301,503.98 and 120,003.28 is: 179,977.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,033.36 : 301,503.98 = 120,003.28 : x
  2. Step 2: Convert to fraction form
    201,033.36/301,503.98 = 120,003.28/x
  3. Step 3: Cross multiply
    201,033.36x = 301,503.98 × 120,003.28
  4. Step 4: Simplify right side
    201,033.36x = 36,181,466,533.05
  5. Step 5: Solve for x
    x = 36,181,466,533.05/201,033.36
  6. Step 6: Final answer
    x = 179,977.43

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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.