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Finding the Fourth Proportional to 175,857.60, 263,786.40 and 51,211.20

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Solution

The fourth proportional to 175,857.60, 263,786.40 and 51,211.20 is: 76,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,857.60 : 263,786.40 = 51,211.20 : x
  2. Step 2: Convert to fraction form
    175,857.60/263,786.40 = 51,211.20/x
  3. Step 3: Cross multiply
    175,857.60x = 263,786.40 × 51,211.20
  4. Step 4: Simplify right side
    175,857.60x = 13,508,818,087.68
  5. Step 5: Solve for x
    x = 13,508,818,087.68/175,857.60
  6. Step 6: Final answer
    x = 76,816.80

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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.