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Finding the Fourth Proportional to 169,644.20, 254,466.30 and 161,090.60

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Solution

The fourth proportional to 169,644.20, 254,466.30 and 161,090.60 is: 241,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,644.20 : 254,466.30 = 161,090.60 : x
  2. Step 2: Convert to fraction form
    169,644.20/254,466.30 = 161,090.60/x
  3. Step 3: Cross multiply
    169,644.20x = 254,466.30 × 161,090.60
  4. Step 4: Simplify right side
    169,644.20x = 40,992,128,946.78
  5. Step 5: Solve for x
    x = 40,992,128,946.78/169,644.20
  6. Step 6: Final answer
    x = 241,635.90

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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.