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Finding the Fourth Proportional to 169,638.60, 254,584.26 and 64,662.60

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Solution

The fourth proportional to 169,638.60, 254,584.26 and 64,662.60 is: 97,042.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,638.60 : 254,584.26 = 64,662.60 : x
  2. Step 2: Convert to fraction form
    169,638.60/254,584.26 = 64,662.60/x
  3. Step 3: Cross multiply
    169,638.60x = 254,584.26 × 64,662.60
  4. Step 4: Simplify right side
    169,638.60x = 16,462,080,170.68
  5. Step 5: Solve for x
    x = 16,462,080,170.68/169,638.60
  6. Step 6: Final answer
    x = 97,042.07

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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.