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Finding the Fourth Proportional to 271,867.70, 407,801.55 and 122,179.70

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Solution

The fourth proportional to 271,867.70, 407,801.55 and 122,179.70 is: 183,269.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,867.70 : 407,801.55 = 122,179.70 : x
  2. Step 2: Convert to fraction form
    271,867.70/407,801.55 = 122,179.70/x
  3. Step 3: Cross multiply
    271,867.70x = 407,801.55 × 122,179.70
  4. Step 4: Simplify right side
    271,867.70x = 49,825,071,038.54
  5. Step 5: Solve for x
    x = 49,825,071,038.54/271,867.70
  6. Step 6: Final answer
    x = 183,269.55

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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.