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Finding the Fourth Proportional to 223,887.60, 336,090.60 and 135,241.20

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Solution

The fourth proportional to 223,887.60, 336,090.60 and 135,241.20 is: 203,018.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,887.60 : 336,090.60 = 135,241.20 : x
  2. Step 2: Convert to fraction form
    223,887.60/336,090.60 = 135,241.20/x
  3. Step 3: Cross multiply
    223,887.60x = 336,090.60 × 135,241.20
  4. Step 4: Simplify right side
    223,887.60x = 45,453,296,052.72
  5. Step 5: Solve for x
    x = 45,453,296,052.72/223,887.60
  6. Step 6: Final answer
    x = 203,018.37

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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.