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Finding the Fourth Proportional to 67,989.87, 102,058.62 and 50,164.62

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Solution

The fourth proportional to 67,989.87, 102,058.62 and 50,164.62 is: 75,301.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,989.87 : 102,058.62 = 50,164.62 : x
  2. Step 2: Convert to fraction form
    67,989.87/102,058.62 = 50,164.62/x
  3. Step 3: Cross multiply
    67,989.87x = 102,058.62 × 50,164.62
  4. Step 4: Simplify right side
    67,989.87x = 5,119,731,890.02
  5. Step 5: Solve for x
    x = 5,119,731,890.02/67,989.87
  6. Step 6: Final answer
    x = 75,301.39

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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.