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Finding the Fourth Proportional to 169,238.43, 253,857.64 and 69,445.62

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Solution

The fourth proportional to 169,238.43, 253,857.64 and 69,445.62 is: 104,168.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,238.43 : 253,857.64 = 69,445.62 : x
  2. Step 2: Convert to fraction form
    169,238.43/253,857.64 = 69,445.62/x
  3. Step 3: Cross multiply
    169,238.43x = 253,857.64 × 69,445.62
  4. Step 4: Simplify right side
    169,238.43x = 17,629,301,027.92
  5. Step 5: Solve for x
    x = 17,629,301,027.92/169,238.43
  6. Step 6: Final answer
    x = 104,168.43

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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.