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Finding the Fourth Proportional to 169,596.60, 254,400.42 and 85,310.82

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Solution

The fourth proportional to 169,596.60, 254,400.42 and 85,310.82 is: 127,969.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,596.60 : 254,400.42 = 85,310.82 : x
  2. Step 2: Convert to fraction form
    169,596.60/254,400.42 = 85,310.82/x
  3. Step 3: Cross multiply
    169,596.60x = 254,400.42 × 85,310.82
  4. Step 4: Simplify right side
    169,596.60x = 21,703,108,438.54
  5. Step 5: Solve for x
    x = 21,703,108,438.54/169,596.60
  6. Step 6: Final answer
    x = 127,969.01

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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.