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Finding the Fourth Proportional to 48,937.20, 73,405.80 and 43,396.80

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Solution

The fourth proportional to 48,937.20, 73,405.80 and 43,396.80 is: 65,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,937.20 : 73,405.80 = 43,396.80 : x
  2. Step 2: Convert to fraction form
    48,937.20/73,405.80 = 43,396.80/x
  3. Step 3: Cross multiply
    48,937.20x = 73,405.80 × 43,396.80
  4. Step 4: Simplify right side
    48,937.20x = 3,185,576,821.44
  5. Step 5: Solve for x
    x = 3,185,576,821.44/48,937.20
  6. Step 6: Final answer
    x = 65,095.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.