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Finding the Fourth Proportional to 223,832.40, 335,748.60 and 215,230.80

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Solution

The fourth proportional to 223,832.40, 335,748.60 and 215,230.80 is: 322,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,832.40 : 335,748.60 = 215,230.80 : x
  2. Step 2: Convert to fraction form
    223,832.40/335,748.60 = 215,230.80/x
  3. Step 3: Cross multiply
    223,832.40x = 335,748.60 × 215,230.80
  4. Step 4: Simplify right side
    223,832.40x = 72,263,439,776.88
  5. Step 5: Solve for x
    x = 72,263,439,776.88/223,832.40
  6. Step 6: Final answer
    x = 322,846.20

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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.