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Finding the Fourth Proportional to 251,893.20, 377,751.60 and 74,353.20

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Solution

The fourth proportional to 251,893.20, 377,751.60 and 74,353.20 is: 111,503.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,893.20 : 377,751.60 = 74,353.20 : x
  2. Step 2: Convert to fraction form
    251,893.20/377,751.60 = 74,353.20/x
  3. Step 3: Cross multiply
    251,893.20x = 377,751.60 × 74,353.20
  4. Step 4: Simplify right side
    251,893.20x = 28,087,040,265.12
  5. Step 5: Solve for x
    x = 28,087,040,265.12/251,893.20
  6. Step 6: Final answer
    x = 111,503.77

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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.