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Finding the Fourth Proportional to 169,496.70, 254,232.68 and 69,629.78

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Solution

The fourth proportional to 169,496.70, 254,232.68 and 69,629.78 is: 104,439.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,496.70 : 254,232.68 = 69,629.78 : x
  2. Step 2: Convert to fraction form
    169,496.70/254,232.68 = 69,629.78/x
  3. Step 3: Cross multiply
    169,496.70x = 254,232.68 × 69,629.78
  4. Step 4: Simplify right side
    169,496.70x = 17,702,165,577.21
  5. Step 5: Solve for x
    x = 17,702,165,577.21/169,496.70
  6. Step 6: Final answer
    x = 104,439.59

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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.