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Finding the Fourth Proportional to 173,863.10, 260,729.85 and 68,660.30

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Solution

The fourth proportional to 173,863.10, 260,729.85 and 68,660.30 is: 102,964.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,863.10 : 260,729.85 = 68,660.30 : x
  2. Step 2: Convert to fraction form
    173,863.10/260,729.85 = 68,660.30/x
  3. Step 3: Cross multiply
    173,863.10x = 260,729.85 × 68,660.30
  4. Step 4: Simplify right side
    173,863.10x = 17,901,789,719.96
  5. Step 5: Solve for x
    x = 17,901,789,719.96/173,863.10
  6. Step 6: Final answer
    x = 102,964.86

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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.