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Finding the Fourth Proportional to 223,383.60, 335,074.74 and 90,262.32

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Solution

The fourth proportional to 223,383.60, 335,074.74 and 90,262.32 is: 135,393.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,383.60 : 335,074.74 = 90,262.32 : x
  2. Step 2: Convert to fraction form
    223,383.60/335,074.74 = 90,262.32/x
  3. Step 3: Cross multiply
    223,383.60x = 335,074.74 × 90,262.32
  4. Step 4: Simplify right side
    223,383.60x = 30,244,623,405.80
  5. Step 5: Solve for x
    x = 30,244,623,405.80/223,383.60
  6. Step 6: Final answer
    x = 135,393.21

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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.