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Finding the Fourth Proportional to 230,819.60, 346,261.80 and 73,031.60

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Solution

The fourth proportional to 230,819.60, 346,261.80 and 73,031.60 is: 109,557.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,819.60 : 346,261.80 = 73,031.60 : x
  2. Step 2: Convert to fraction form
    230,819.60/346,261.80 = 73,031.60/x
  3. Step 3: Cross multiply
    230,819.60x = 346,261.80 × 73,031.60
  4. Step 4: Simplify right side
    230,819.60x = 25,288,053,272.88
  5. Step 5: Solve for x
    x = 25,288,053,272.88/230,819.60
  6. Step 6: Final answer
    x = 109,557.65

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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.