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Finding the Fourth Proportional to 264,786.20, 396,523.20 and 169,870.40

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Solution

The fourth proportional to 264,786.20, 396,523.20 and 169,870.40 is: 254,384.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,786.20 : 396,523.20 = 169,870.40 : x
  2. Step 2: Convert to fraction form
    264,786.20/396,523.20 = 169,870.40/x
  3. Step 3: Cross multiply
    264,786.20x = 396,523.20 × 169,870.40
  4. Step 4: Simplify right side
    264,786.20x = 67,357,554,593.28
  5. Step 5: Solve for x
    x = 67,357,554,593.28/264,786.20
  6. Step 6: Final answer
    x = 254,384.69

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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.