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Finding the Fourth Proportional to 322,266.80, 482,824.20 and 155,687.60

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Solution

The fourth proportional to 322,266.80, 482,824.20 and 155,687.60 is: 233,253.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,266.80 : 482,824.20 = 155,687.60 : x
  2. Step 2: Convert to fraction form
    322,266.80/482,824.20 = 155,687.60/x
  3. Step 3: Cross multiply
    322,266.80x = 482,824.20 × 155,687.60
  4. Step 4: Simplify right side
    322,266.80x = 75,169,740,919.92
  5. Step 5: Solve for x
    x = 75,169,740,919.92/322,266.80
  6. Step 6: Final answer
    x = 233,253.13

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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.