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Finding the Fourth Proportional to 228,065.54, 342,116.44 and 68,129.73

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Solution

The fourth proportional to 228,065.54, 342,116.44 and 68,129.73 is: 102,200.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,065.54 : 342,116.44 = 68,129.73 : x
  2. Step 2: Convert to fraction form
    228,065.54/342,116.44 = 68,129.73/x
  3. Step 3: Cross multiply
    228,065.54x = 342,116.44 × 68,129.73
  4. Step 4: Simplify right side
    228,065.54x = 23,308,300,515.44
  5. Step 5: Solve for x
    x = 23,308,300,515.44/228,065.54
  6. Step 6: Final answer
    x = 102,200.01

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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.