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Finding the Fourth Proportional to 226,473.80, 339,845.10 and 86,246.60

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Solution

The fourth proportional to 226,473.80, 339,845.10 and 86,246.60 is: 129,421.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,473.80 : 339,845.10 = 86,246.60 : x
  2. Step 2: Convert to fraction form
    226,473.80/339,845.10 = 86,246.60/x
  3. Step 3: Cross multiply
    226,473.80x = 339,845.10 × 86,246.60
  4. Step 4: Simplify right side
    226,473.80x = 29,310,484,401.66
  5. Step 5: Solve for x
    x = 29,310,484,401.66/226,473.80
  6. Step 6: Final answer
    x = 129,421.08

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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.