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Finding the Fourth Proportional to 321,852.88, 482,779.73 and 111,490.80

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Solution

The fourth proportional to 321,852.88, 482,779.73 and 111,490.80 is: 167,236.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,852.88 : 482,779.73 = 111,490.80 : x
  2. Step 2: Convert to fraction form
    321,852.88/482,779.73 = 111,490.80/x
  3. Step 3: Cross multiply
    321,852.88x = 482,779.73 × 111,490.80
  4. Step 4: Simplify right side
    321,852.88x = 53,825,498,321.48
  5. Step 5: Solve for x
    x = 53,825,498,321.48/321,852.88
  6. Step 6: Final answer
    x = 167,236.34

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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.