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Finding the Fourth Proportional to 173,563.20, 260,359.20 and 55,231.20

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Solution

The fourth proportional to 173,563.20, 260,359.20 and 55,231.20 is: 82,851.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,563.20 : 260,359.20 = 55,231.20 : x
  2. Step 2: Convert to fraction form
    173,563.20/260,359.20 = 55,231.20/x
  3. Step 3: Cross multiply
    173,563.20x = 260,359.20 × 55,231.20
  4. Step 4: Simplify right side
    173,563.20x = 14,379,951,047.04
  5. Step 5: Solve for x
    x = 14,379,951,047.04/173,563.20
  6. Step 6: Final answer
    x = 82,851.38

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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.