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Finding the Fourth Proportional to 329,793.12, 494,357.31 and 130,036.32

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Solution

The fourth proportional to 329,793.12, 494,357.31 and 130,036.32 is: 194,923.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,793.12 : 494,357.31 = 130,036.32 : x
  2. Step 2: Convert to fraction form
    329,793.12/494,357.31 = 130,036.32/x
  3. Step 3: Cross multiply
    329,793.12x = 494,357.31 × 130,036.32
  4. Step 4: Simplify right side
    329,793.12x = 64,284,405,357.50
  5. Step 5: Solve for x
    x = 64,284,405,357.50/329,793.12
  6. Step 6: Final answer
    x = 194,923.43

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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.