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Finding the Fourth Proportional to 222,729.68, 307,361.48 and 120,749.52

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Solution

The fourth proportional to 222,729.68, 307,361.48 and 120,749.52 is: 166,631.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,729.68 : 307,361.48 = 120,749.52 : x
  2. Step 2: Convert to fraction form
    222,729.68/307,361.48 = 120,749.52/x
  3. Step 3: Cross multiply
    222,729.68x = 307,361.48 × 120,749.52
  4. Step 4: Simplify right side
    222,729.68x = 37,113,751,176.49
  5. Step 5: Solve for x
    x = 37,113,751,176.49/222,729.68
  6. Step 6: Final answer
    x = 166,631.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.