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Finding the Fourth Proportional to 445,906.33, 668,857.66 and 161,530.29

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Solution

The fourth proportional to 445,906.33, 668,857.66 and 161,530.29 is: 242,294.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,906.33 : 668,857.66 = 161,530.29 : x
  2. Step 2: Convert to fraction form
    445,906.33/668,857.66 = 161,530.29/x
  3. Step 3: Cross multiply
    445,906.33x = 668,857.66 × 161,530.29
  4. Step 4: Simplify right side
    445,906.33x = 108,040,771,788.52
  5. Step 5: Solve for x
    x = 108,040,771,788.52/445,906.33
  6. Step 6: Final answer
    x = 242,294.77

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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.