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Finding the Fourth Proportional to 73,393.20, 109,871.10 and 43,795.80

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Solution

The fourth proportional to 73,393.20, 109,871.10 and 43,795.80 is: 65,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,393.20 : 109,871.10 = 43,795.80 : x
  2. Step 2: Convert to fraction form
    73,393.20/109,871.10 = 43,795.80/x
  3. Step 3: Cross multiply
    73,393.20x = 109,871.10 × 43,795.80
  4. Step 4: Simplify right side
    73,393.20x = 4,811,892,721.38
  5. Step 5: Solve for x
    x = 4,811,892,721.38/73,393.20
  6. Step 6: Final answer
    x = 65,563.20

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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.