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Finding the Fourth Proportional to 383,879.37, 575,903.30 and 117,659.91

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Solution

The fourth proportional to 383,879.37, 575,903.30 and 117,659.91 is: 176,515.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,879.37 : 575,903.30 = 117,659.91 : x
  2. Step 2: Convert to fraction form
    383,879.37/575,903.30 = 117,659.91/x
  3. Step 3: Cross multiply
    383,879.37x = 575,903.30 × 117,659.91
  4. Step 4: Simplify right side
    383,879.37x = 67,760,729,858.40
  5. Step 5: Solve for x
    x = 67,760,729,858.40/383,879.37
  6. Step 6: Final answer
    x = 176,515.68

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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.