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Finding the Fourth Proportional to 226,714.40, 340,201.20 and 86,573.60

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Solution

The fourth proportional to 226,714.40, 340,201.20 and 86,573.60 is: 129,909.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,714.40 : 340,201.20 = 86,573.60 : x
  2. Step 2: Convert to fraction form
    226,714.40/340,201.20 = 86,573.60/x
  3. Step 3: Cross multiply
    226,714.40x = 340,201.20 × 86,573.60
  4. Step 4: Simplify right side
    226,714.40x = 29,452,442,608.32
  5. Step 5: Solve for x
    x = 29,452,442,608.32/226,714.40
  6. Step 6: Final answer
    x = 129,909.89

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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.