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Finding the Fourth Proportional to 169,609.20, 254,405.64 and 64,419.96

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Solution

The fourth proportional to 169,609.20, 254,405.64 and 64,419.96 is: 96,626.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,609.20 : 254,405.64 = 64,419.96 : x
  2. Step 2: Convert to fraction form
    169,609.20/254,405.64 = 64,419.96/x
  3. Step 3: Cross multiply
    169,609.20x = 254,405.64 × 64,419.96
  4. Step 4: Simplify right side
    169,609.20x = 16,388,801,152.57
  5. Step 5: Solve for x
    x = 16,388,801,152.57/169,609.20
  6. Step 6: Final answer
    x = 96,626.84

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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.