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Finding the Fourth Proportional to 173,563.89, 260,369.12 and 61,217.70

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Solution

The fourth proportional to 173,563.89, 260,369.12 and 61,217.70 is: 91,834.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,563.89 : 260,369.12 = 61,217.70 : x
  2. Step 2: Convert to fraction form
    173,563.89/260,369.12 = 61,217.70/x
  3. Step 3: Cross multiply
    173,563.89x = 260,369.12 × 61,217.70
  4. Step 4: Simplify right side
    173,563.89x = 15,939,198,677.42
  5. Step 5: Solve for x
    x = 15,939,198,677.42/173,563.89
  6. Step 6: Final answer
    x = 91,834.76

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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.