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Finding the Fourth Proportional to 173,291.40, 259,912.80 and 54,974.70

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Solution

The fourth proportional to 173,291.40, 259,912.80 and 54,974.70 is: 82,454.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,291.40 : 259,912.80 = 54,974.70 : x
  2. Step 2: Convert to fraction form
    173,291.40/259,912.80 = 54,974.70/x
  3. Step 3: Cross multiply
    173,291.40x = 259,912.80 × 54,974.70
  4. Step 4: Simplify right side
    173,291.40x = 14,288,628,206.16
  5. Step 5: Solve for x
    x = 14,288,628,206.16/173,291.40
  6. Step 6: Final answer
    x = 82,454.34

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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.