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Finding the Fourth Proportional to 225,241.92, 337,940.16 and 85,040.64

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Solution

The fourth proportional to 225,241.92, 337,940.16 and 85,040.64 is: 127,590.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,241.92 : 337,940.16 = 85,040.64 : x
  2. Step 2: Convert to fraction form
    225,241.92/337,940.16 = 85,040.64/x
  3. Step 3: Cross multiply
    225,241.92x = 337,940.16 × 85,040.64
  4. Step 4: Simplify right side
    225,241.92x = 28,738,647,488.10
  5. Step 5: Solve for x
    x = 28,738,647,488.10/225,241.92
  6. Step 6: Final answer
    x = 127,590.14

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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.