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Finding the Fourth Proportional to 339,226.80, 508,840.20 and 102,735.60

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Solution

The fourth proportional to 339,226.80, 508,840.20 and 102,735.60 is: 154,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,226.80 : 508,840.20 = 102,735.60 : x
  2. Step 2: Convert to fraction form
    339,226.80/508,840.20 = 102,735.60/x
  3. Step 3: Cross multiply
    339,226.80x = 508,840.20 × 102,735.60
  4. Step 4: Simplify right side
    339,226.80x = 52,276,003,251.12
  5. Step 5: Solve for x
    x = 52,276,003,251.12/339,226.80
  6. Step 6: Final answer
    x = 154,103.40

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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.