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Finding the Fourth Proportional to 169,230.96, 253,853.46 and 139,593.60

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Solution

The fourth proportional to 169,230.96, 253,853.46 and 139,593.60 is: 209,396.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,230.96 : 253,853.46 = 139,593.60 : x
  2. Step 2: Convert to fraction form
    169,230.96/253,853.46 = 139,593.60/x
  3. Step 3: Cross multiply
    169,230.96x = 253,853.46 × 139,593.60
  4. Step 4: Simplify right side
    169,230.96x = 35,436,318,353.86
  5. Step 5: Solve for x
    x = 35,436,318,353.86/169,230.96
  6. Step 6: Final answer
    x = 209,396.19

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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.