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Finding the Fourth Proportional to 348,708.86, 481,234.20 and 193,660.86

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Solution

The fourth proportional to 348,708.86, 481,234.20 and 193,660.86 is: 267,260.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,708.86 : 481,234.20 = 193,660.86 : x
  2. Step 2: Convert to fraction form
    348,708.86/481,234.20 = 193,660.86/x
  3. Step 3: Cross multiply
    348,708.86x = 481,234.20 × 193,660.86
  4. Step 4: Simplify right side
    348,708.86x = 93,196,229,038.88
  5. Step 5: Solve for x
    x = 93,196,229,038.88/348,708.86
  6. Step 6: Final answer
    x = 267,260.86

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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.