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Finding the Fourth Proportional to 359,481.60, 539,416.80 and 159,832.80

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Solution

The fourth proportional to 359,481.60, 539,416.80 and 159,832.80 is: 239,835.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,481.60 : 539,416.80 = 159,832.80 : x
  2. Step 2: Convert to fraction form
    359,481.60/539,416.80 = 159,832.80/x
  3. Step 3: Cross multiply
    359,481.60x = 539,416.80 × 159,832.80
  4. Step 4: Simplify right side
    359,481.60x = 86,216,497,511.04
  5. Step 5: Solve for x
    x = 86,216,497,511.04/359,481.60
  6. Step 6: Final answer
    x = 239,835.63

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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.