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Finding the Fourth Proportional to 78,273.73, 108,017.76 and 44,281.50

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Solution

The fourth proportional to 78,273.73, 108,017.76 and 44,281.50 is: 61,108.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,273.73 : 108,017.76 = 44,281.50 : x
  2. Step 2: Convert to fraction form
    78,273.73/108,017.76 = 44,281.50/x
  3. Step 3: Cross multiply
    78,273.73x = 108,017.76 × 44,281.50
  4. Step 4: Simplify right side
    78,273.73x = 4,783,188,439.44
  5. Step 5: Solve for x
    x = 4,783,188,439.44/78,273.73
  6. Step 6: Final answer
    x = 61,108.48

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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.