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Finding the Fourth Proportional to 223,563.98, 335,346.19 and 90,445.37

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Solution

The fourth proportional to 223,563.98, 335,346.19 and 90,445.37 is: 135,668.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,563.98 : 335,346.19 = 90,445.37 : x
  2. Step 2: Convert to fraction form
    223,563.98/335,346.19 = 90,445.37/x
  3. Step 3: Cross multiply
    223,563.98x = 335,346.19 × 90,445.37
  4. Step 4: Simplify right side
    223,563.98x = 30,330,508,329.80
  5. Step 5: Solve for x
    x = 30,330,508,329.80/223,563.98
  6. Step 6: Final answer
    x = 135,668.13

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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.