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Finding the Fourth Proportional to 348,061.20, 522,091.80 and 237,469.20

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Solution

The fourth proportional to 348,061.20, 522,091.80 and 237,469.20 is: 356,203.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,061.20 : 522,091.80 = 237,469.20 : x
  2. Step 2: Convert to fraction form
    348,061.20/522,091.80 = 237,469.20/x
  3. Step 3: Cross multiply
    348,061.20x = 522,091.80 × 237,469.20
  4. Step 4: Simplify right side
    348,061.20x = 123,980,722,072.56
  5. Step 5: Solve for x
    x = 123,980,722,072.56/348,061.20
  6. Step 6: Final answer
    x = 356,203.80

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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.