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Finding the Fourth Proportional to 230,927.20, 346,441.20 and 131,135.20

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Solution

The fourth proportional to 230,927.20, 346,441.20 and 131,135.20 is: 196,731.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,927.20 : 346,441.20 = 131,135.20 : x
  2. Step 2: Convert to fraction form
    230,927.20/346,441.20 = 131,135.20/x
  3. Step 3: Cross multiply
    230,927.20x = 346,441.20 × 131,135.20
  4. Step 4: Simplify right side
    230,927.20x = 45,430,636,050.24
  5. Step 5: Solve for x
    x = 45,430,636,050.24/230,927.20
  6. Step 6: Final answer
    x = 196,731.42

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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.