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Finding the Fourth Proportional to 277,820.62, 383,391.62 and 156,961.86

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Solution

The fourth proportional to 277,820.62, 383,391.62 and 156,961.86 is: 216,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,820.62 : 383,391.62 = 156,961.86 : x
  2. Step 2: Convert to fraction form
    277,820.62/383,391.62 = 156,961.86/x
  3. Step 3: Cross multiply
    277,820.62x = 383,391.62 × 156,961.86
  4. Step 4: Simplify right side
    277,820.62x = 60,177,862,176.02
  5. Step 5: Solve for x
    x = 60,177,862,176.02/277,820.62
  6. Step 6: Final answer
    x = 216,606.90

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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.