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Finding the Fourth Proportional to 277,751.96, 383,321.30 and 156,915.41

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Solution

The fourth proportional to 277,751.96, 383,321.30 and 156,915.41 is: 216,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,751.96 : 383,321.30 = 156,915.41 : x
  2. Step 2: Convert to fraction form
    277,751.96/383,321.30 = 156,915.41/x
  3. Step 3: Cross multiply
    277,751.96x = 383,321.30 × 156,915.41
  4. Step 4: Simplify right side
    277,751.96x = 60,149,018,951.23
  5. Step 5: Solve for x
    x = 60,149,018,951.23/277,751.96
  6. Step 6: Final answer
    x = 216,556.60

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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.