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Finding the Fourth Proportional to 173,106.70, 259,660.05 and 54,787.30

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Solution

The fourth proportional to 173,106.70, 259,660.05 and 54,787.30 is: 82,180.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,106.70 : 259,660.05 = 54,787.30 : x
  2. Step 2: Convert to fraction form
    173,106.70/259,660.05 = 54,787.30/x
  3. Step 3: Cross multiply
    173,106.70x = 259,660.05 × 54,787.30
  4. Step 4: Simplify right side
    173,106.70x = 14,226,073,057.37
  5. Step 5: Solve for x
    x = 14,226,073,057.37/173,106.70
  6. Step 6: Final answer
    x = 82,180.95

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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.