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Finding the Fourth Proportional to 223,480.98, 335,220.62 and 90,359.64

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Solution

The fourth proportional to 223,480.98, 335,220.62 and 90,359.64 is: 135,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,480.98 : 335,220.62 = 90,359.64 : x
  2. Step 2: Convert to fraction form
    223,480.98/335,220.62 = 90,359.64/x
  3. Step 3: Cross multiply
    223,480.98x = 335,220.62 × 90,359.64
  4. Step 4: Simplify right side
    223,480.98x = 30,290,414,091.98
  5. Step 5: Solve for x
    x = 30,290,414,091.98/223,480.98
  6. Step 6: Final answer
    x = 135,539.11

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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.