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Finding the Fourth Proportional to 169,631.80, 254,447.70 and 119,606.20

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Solution

The fourth proportional to 169,631.80, 254,447.70 and 119,606.20 is: 179,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,631.80 : 254,447.70 = 119,606.20 : x
  2. Step 2: Convert to fraction form
    169,631.80/254,447.70 = 119,606.20/x
  3. Step 3: Cross multiply
    169,631.80x = 254,447.70 × 119,606.20
  4. Step 4: Simplify right side
    169,631.80x = 30,433,522,495.74
  5. Step 5: Solve for x
    x = 30,433,522,495.74/169,631.80
  6. Step 6: Final answer
    x = 179,409.30

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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.