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Finding the Fourth Proportional to 65,285.48, 90,121.52 and 44,093.45

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Solution

The fourth proportional to 65,285.48, 90,121.52 and 44,093.45 is: 60,867.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,285.48 : 90,121.52 = 44,093.45 : x
  2. Step 2: Convert to fraction form
    65,285.48/90,121.52 = 44,093.45/x
  3. Step 3: Cross multiply
    65,285.48x = 90,121.52 × 44,093.45
  4. Step 4: Simplify right side
    65,285.48x = 3,973,768,064.97
  5. Step 5: Solve for x
    x = 3,973,768,064.97/65,285.48
  6. Step 6: Final answer
    x = 60,867.57

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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.