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Finding the Fourth Proportional to 48,803.80, 73,205.70 and 40,493.20

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Solution

The fourth proportional to 48,803.80, 73,205.70 and 40,493.20 is: 60,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,803.80 : 73,205.70 = 40,493.20 : x
  2. Step 2: Convert to fraction form
    48,803.80/73,205.70 = 40,493.20/x
  3. Step 3: Cross multiply
    48,803.80x = 73,205.70 × 40,493.20
  4. Step 4: Simplify right side
    48,803.80x = 2,964,333,051.24
  5. Step 5: Solve for x
    x = 2,964,333,051.24/48,803.80
  6. Step 6: Final answer
    x = 60,739.80

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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.