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Finding the Fourth Proportional to 329,065.20, 493,379.10 and 151,480.80

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Solution

The fourth proportional to 329,065.20, 493,379.10 and 151,480.80 is: 227,120.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,065.20 : 493,379.10 = 151,480.80 : x
  2. Step 2: Convert to fraction form
    329,065.20/493,379.10 = 151,480.80/x
  3. Step 3: Cross multiply
    329,065.20x = 493,379.10 × 151,480.80
  4. Step 4: Simplify right side
    329,065.20x = 74,737,460,771.28
  5. Step 5: Solve for x
    x = 74,737,460,771.28/329,065.20
  6. Step 6: Final answer
    x = 227,120.52

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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.