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Finding the Fourth Proportional to 298,787.64, 412,327.02 and 164,651.64

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Solution

The fourth proportional to 298,787.64, 412,327.02 and 164,651.64 is: 227,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,787.64 : 412,327.02 = 164,651.64 : x
  2. Step 2: Convert to fraction form
    298,787.64/412,327.02 = 164,651.64/x
  3. Step 3: Cross multiply
    298,787.64x = 412,327.02 × 164,651.64
  4. Step 4: Simplify right side
    298,787.64x = 67,890,320,059.31
  5. Step 5: Solve for x
    x = 67,890,320,059.31/298,787.64
  6. Step 6: Final answer
    x = 227,219.31

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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.