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Finding the Fourth Proportional to 361,893.89, 499,373.26 and 200,708.55

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Solution

The fourth proportional to 361,893.89, 499,373.26 and 200,708.55 is: 276,955.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,893.89 : 499,373.26 = 200,708.55 : x
  2. Step 2: Convert to fraction form
    361,893.89/499,373.26 = 200,708.55/x
  3. Step 3: Cross multiply
    361,893.89x = 499,373.26 × 200,708.55
  4. Step 4: Simplify right side
    361,893.89x = 100,228,482,421.60
  5. Step 5: Solve for x
    x = 100,228,482,421.60/361,893.89
  6. Step 6: Final answer
    x = 276,955.44

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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.