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Finding the Fourth Proportional to 268,650.62, 370,723.21 and 147,772.39

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Solution

The fourth proportional to 268,650.62, 370,723.21 and 147,772.39 is: 203,917.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,650.62 : 370,723.21 = 147,772.39 : x
  2. Step 2: Convert to fraction form
    268,650.62/370,723.21 = 147,772.39/x
  3. Step 3: Cross multiply
    268,650.62x = 370,723.21 × 147,772.39
  4. Step 4: Simplify right side
    268,650.62x = 54,782,654,954.89
  5. Step 5: Solve for x
    x = 54,782,654,954.89/268,650.62
  6. Step 6: Final answer
    x = 203,917.84

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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.