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Finding the Fourth Proportional to 175,978.20, 263,991.60 and 63,631.20

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Solution

The fourth proportional to 175,978.20, 263,991.60 and 63,631.20 is: 95,455.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,978.20 : 263,991.60 = 63,631.20 : x
  2. Step 2: Convert to fraction form
    175,978.20/263,991.60 = 63,631.20/x
  3. Step 3: Cross multiply
    175,978.20x = 263,991.60 × 63,631.20
  4. Step 4: Simplify right side
    175,978.20x = 16,798,102,297.92
  5. Step 5: Solve for x
    x = 16,798,102,297.92/175,978.20
  6. Step 6: Final answer
    x = 95,455.59

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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.