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Finding the Fourth Proportional to 139,433.66, 209,058.03 and 50,676.62

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Solution

The fourth proportional to 139,433.66, 209,058.03 and 50,676.62 is: 75,981.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,433.66 : 209,058.03 = 50,676.62 : x
  2. Step 2: Convert to fraction form
    139,433.66/209,058.03 = 50,676.62/x
  3. Step 3: Cross multiply
    139,433.66x = 209,058.03 × 50,676.62
  4. Step 4: Simplify right side
    139,433.66x = 10,594,354,344.26
  5. Step 5: Solve for x
    x = 10,594,354,344.26/139,433.66
  6. Step 6: Final answer
    x = 75,981.33

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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.