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Finding the Fourth Proportional to 269,763.20, 404,644.80 and 238,659.20

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Solution

The fourth proportional to 269,763.20, 404,644.80 and 238,659.20 is: 357,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,763.20 : 404,644.80 = 238,659.20 : x
  2. Step 2: Convert to fraction form
    269,763.20/404,644.80 = 238,659.20/x
  3. Step 3: Cross multiply
    269,763.20x = 404,644.80 × 238,659.20
  4. Step 4: Simplify right side
    269,763.20x = 96,572,204,252.16
  5. Step 5: Solve for x
    x = 96,572,204,252.16/269,763.20
  6. Step 6: Final answer
    x = 357,988.80

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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.