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Finding the Fourth Proportional to 328,821.35, 493,246.35 and 104,198.36

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Solution

The fourth proportional to 328,821.35, 493,246.35 and 104,198.36 is: 156,302.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,821.35 : 493,246.35 = 104,198.36 : x
  2. Step 2: Convert to fraction form
    328,821.35/493,246.35 = 104,198.36/x
  3. Step 3: Cross multiply
    328,821.35x = 493,246.35 × 104,198.36
  4. Step 4: Simplify right side
    328,821.35x = 51,395,458,279.75
  5. Step 5: Solve for x
    x = 51,395,458,279.75/328,821.35
  6. Step 6: Final answer
    x = 156,302.07

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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.