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Finding the Fourth Proportional to 228,573.91, 342,883.43 and 78,794.49

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Solution

The fourth proportional to 228,573.91, 342,883.43 and 78,794.49 is: 118,199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,573.91 : 342,883.43 = 78,794.49 : x
  2. Step 2: Convert to fraction form
    228,573.91/342,883.43 = 78,794.49/x
  3. Step 3: Cross multiply
    228,573.91x = 342,883.43 × 78,794.49
  4. Step 4: Simplify right side
    228,573.91x = 27,017,324,996.30
  5. Step 5: Solve for x
    x = 27,017,324,996.30/228,573.91
  6. Step 6: Final answer
    x = 118,199.51

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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.