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Finding the Fourth Proportional to 220,544.64, 331,254.36 and 188,942.49

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Solution

The fourth proportional to 220,544.64, 331,254.36 and 188,942.49 is: 283,788.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,544.64 : 331,254.36 = 188,942.49 : x
  2. Step 2: Convert to fraction form
    220,544.64/331,254.36 = 188,942.49/x
  3. Step 3: Cross multiply
    220,544.64x = 331,254.36 × 188,942.49
  4. Step 4: Simplify right side
    220,544.64x = 62,588,023,601.76
  5. Step 5: Solve for x
    x = 62,588,023,601.76/220,544.64
  6. Step 6: Final answer
    x = 283,788.46

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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.