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Finding the Fourth Proportional to 164,969.70, 247,454.55 and 122,979.30

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Solution

The fourth proportional to 164,969.70, 247,454.55 and 122,979.30 is: 184,468.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,969.70 : 247,454.55 = 122,979.30 : x
  2. Step 2: Convert to fraction form
    164,969.70/247,454.55 = 122,979.30/x
  3. Step 3: Cross multiply
    164,969.70x = 247,454.55 × 122,979.30
  4. Step 4: Simplify right side
    164,969.70x = 30,431,787,340.82
  5. Step 5: Solve for x
    x = 30,431,787,340.82/164,969.70
  6. Step 6: Final answer
    x = 184,468.95

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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.