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Finding the Fourth Proportional to 264,881.20, 396,665.70 and 169,965.40

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Solution

The fourth proportional to 264,881.20, 396,665.70 and 169,965.40 is: 254,527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,881.20 : 396,665.70 = 169,965.40 : x
  2. Step 2: Convert to fraction form
    264,881.20/396,665.70 = 169,965.40/x
  3. Step 3: Cross multiply
    264,881.20x = 396,665.70 × 169,965.40
  4. Step 4: Simplify right side
    264,881.20x = 67,419,444,366.78
  5. Step 5: Solve for x
    x = 67,419,444,366.78/264,881.20
  6. Step 6: Final answer
    x = 254,527.10

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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.