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Finding the Fourth Proportional to 264,866.60, 396,992.70 and 106,991.40

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Solution

The fourth proportional to 264,866.60, 396,992.70 and 106,991.40 is: 160,363.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,866.60 : 396,992.70 = 106,991.40 : x
  2. Step 2: Convert to fraction form
    264,866.60/396,992.70 = 106,991.40/x
  3. Step 3: Cross multiply
    264,866.60x = 396,992.70 × 106,991.40
  4. Step 4: Simplify right side
    264,866.60x = 42,474,804,762.78
  5. Step 5: Solve for x
    x = 42,474,804,762.78/264,866.60
  6. Step 6: Final answer
    x = 160,363.01

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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.