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Finding the Fourth Proportional to 173,311.95, 259,977.15 and 54,992.55

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Solution

The fourth proportional to 173,311.95, 259,977.15 and 54,992.55 is: 82,491.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,311.95 : 259,977.15 = 54,992.55 : x
  2. Step 2: Convert to fraction form
    173,311.95/259,977.15 = 54,992.55/x
  3. Step 3: Cross multiply
    173,311.95x = 259,977.15 × 54,992.55
  4. Step 4: Simplify right side
    173,311.95x = 14,296,806,420.23
  5. Step 5: Solve for x
    x = 14,296,806,420.23/173,311.95
  6. Step 6: Final answer
    x = 82,491.75

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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.