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Finding the Fourth Proportional to 48,149.80, 66,512.82 and 43,678.60

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Solution

The fourth proportional to 48,149.80, 66,512.82 and 43,678.60 is: 60,336.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,149.80 : 66,512.82 = 43,678.60 : x
  2. Step 2: Convert to fraction form
    48,149.80/66,512.82 = 43,678.60/x
  3. Step 3: Cross multiply
    48,149.80x = 66,512.82 × 43,678.60
  4. Step 4: Simplify right side
    48,149.80x = 2,905,186,859.65
  5. Step 5: Solve for x
    x = 2,905,186,859.65/48,149.80
  6. Step 6: Final answer
    x = 60,336.43

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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.