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Finding the Fourth Proportional to 348,521.56, 481,230.66 and 267,821.80

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Solution

The fourth proportional to 348,521.56, 481,230.66 and 267,821.80 is: 369,802.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,521.56 : 481,230.66 = 267,821.80 : x
  2. Step 2: Convert to fraction form
    348,521.56/481,230.66 = 267,821.80/x
  3. Step 3: Cross multiply
    348,521.56x = 481,230.66 × 267,821.80
  4. Step 4: Simplify right side
    348,521.56x = 128,884,061,576.39
  5. Step 5: Solve for x
    x = 128,884,061,576.39/348,521.56
  6. Step 6: Final answer
    x = 369,802.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.