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Finding the Fourth Proportional to 175,953.60, 263,757.60 and 87,220.80

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Solution

The fourth proportional to 175,953.60, 263,757.60 and 87,220.80 is: 130,745.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,953.60 : 263,757.60 = 87,220.80 : x
  2. Step 2: Convert to fraction form
    175,953.60/263,757.60 = 87,220.80/x
  3. Step 3: Cross multiply
    175,953.60x = 263,757.60 × 87,220.80
  4. Step 4: Simplify right side
    175,953.60x = 23,005,148,878.08
  5. Step 5: Solve for x
    x = 23,005,148,878.08/175,953.60
  6. Step 6: Final answer
    x = 130,745.54

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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.