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Finding the Fourth Proportional to 223,603.11, 335,201.01 and 143,662.80

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Solution

The fourth proportional to 223,603.11, 335,201.01 and 143,662.80 is: 215,363.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,603.11 : 335,201.01 = 143,662.80 : x
  2. Step 2: Convert to fraction form
    223,603.11/335,201.01 = 143,662.80/x
  3. Step 3: Cross multiply
    223,603.11x = 335,201.01 × 143,662.80
  4. Step 4: Simplify right side
    223,603.11x = 48,155,915,659.43
  5. Step 5: Solve for x
    x = 48,155,915,659.43/223,603.11
  6. Step 6: Final answer
    x = 215,363.35

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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.