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Finding the Fourth Proportional to 65,466.48, 90,336.73 and 43,951.87

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Solution

The fourth proportional to 65,466.48, 90,336.73 and 43,951.87 is: 60,648.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,466.48 : 90,336.73 = 43,951.87 : x
  2. Step 2: Convert to fraction form
    65,466.48/90,336.73 = 43,951.87/x
  3. Step 3: Cross multiply
    65,466.48x = 90,336.73 × 43,951.87
  4. Step 4: Simplify right side
    65,466.48x = 3,970,468,213.19
  5. Step 5: Solve for x
    x = 3,970,468,213.19/65,466.48
  6. Step 6: Final answer
    x = 60,648.87

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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.