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Finding the Fourth Proportional to 63,647.76, 87,836.40 and 43,546.80

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Solution

The fourth proportional to 63,647.76, 87,836.40 and 43,546.80 is: 60,096.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,647.76 : 87,836.40 = 43,546.80 : x
  2. Step 2: Convert to fraction form
    63,647.76/87,836.40 = 43,546.80/x
  3. Step 3: Cross multiply
    63,647.76x = 87,836.40 × 43,546.80
  4. Step 4: Simplify right side
    63,647.76x = 3,824,994,143.52
  5. Step 5: Solve for x
    x = 3,824,994,143.52/63,647.76
  6. Step 6: Final answer
    x = 60,096.29

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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.