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Finding the Fourth Proportional to 230,857.80, 346,335.30 and 73,102.20

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Solution

The fourth proportional to 230,857.80, 346,335.30 and 73,102.20 is: 109,668.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,857.80 : 346,335.30 = 73,102.20 : x
  2. Step 2: Convert to fraction form
    230,857.80/346,335.30 = 73,102.20/x
  3. Step 3: Cross multiply
    230,857.80x = 346,335.30 × 73,102.20
  4. Step 4: Simplify right side
    230,857.80x = 25,317,872,367.66
  5. Step 5: Solve for x
    x = 25,317,872,367.66/230,857.80
  6. Step 6: Final answer
    x = 109,668.69

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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.