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Finding the Fourth Proportional to 65,285.98, 90,122.21 and 44,093.95

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Solution

The fourth proportional to 65,285.98, 90,122.21 and 44,093.95 is: 60,868.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,285.98 : 90,122.21 = 44,093.95 : x
  2. Step 2: Convert to fraction form
    65,285.98/90,122.21 = 44,093.95/x
  3. Step 3: Cross multiply
    65,285.98x = 90,122.21 × 44,093.95
  4. Step 4: Simplify right side
    65,285.98x = 3,973,844,221.63
  5. Step 5: Solve for x
    x = 3,973,844,221.63/65,285.98
  6. Step 6: Final answer
    x = 60,868.26

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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.