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Finding the Fourth Proportional to 169,469.55, 254,205.78 and 43,109.90

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Solution

The fourth proportional to 169,469.55, 254,205.78 and 43,109.90 is: 64,665.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,469.55 : 254,205.78 = 43,109.90 : x
  2. Step 2: Convert to fraction form
    169,469.55/254,205.78 = 43,109.90/x
  3. Step 3: Cross multiply
    169,469.55x = 254,205.78 × 43,109.90
  4. Step 4: Simplify right side
    169,469.55x = 10,958,786,705.71
  5. Step 5: Solve for x
    x = 10,958,786,705.71/169,469.55
  6. Step 6: Final answer
    x = 64,665.23

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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.