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Finding the Fourth Proportional to 230,992.80, 346,316.40 and 125,930.40

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Solution

The fourth proportional to 230,992.80, 346,316.40 and 125,930.40 is: 188,801.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,992.80 : 346,316.40 = 125,930.40 : x
  2. Step 2: Convert to fraction form
    230,992.80/346,316.40 = 125,930.40/x
  3. Step 3: Cross multiply
    230,992.80x = 346,316.40 × 125,930.40
  4. Step 4: Simplify right side
    230,992.80x = 43,611,762,778.56
  5. Step 5: Solve for x
    x = 43,611,762,778.56/230,992.80
  6. Step 6: Final answer
    x = 188,801.39

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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.