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Finding the Fourth Proportional to 227,108.67, 340,712.87 and 67,172.10

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Solution

The fourth proportional to 227,108.67, 340,712.87 and 67,172.10 is: 100,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,108.67 : 340,712.87 = 67,172.10 : x
  2. Step 2: Convert to fraction form
    227,108.67/340,712.87 = 67,172.10/x
  3. Step 3: Cross multiply
    227,108.67x = 340,712.87 × 67,172.10
  4. Step 4: Simplify right side
    227,108.67x = 22,886,398,807.00
  5. Step 5: Solve for x
    x = 22,886,398,807.00/227,108.67
  6. Step 6: Final answer
    x = 100,772.90

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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.