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Finding the Fourth Proportional to 162,617.01, 243,747.57 and 83,735.97

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Solution

The fourth proportional to 162,617.01, 243,747.57 and 83,735.97 is: 125,512.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,617.01 : 243,747.57 = 83,735.97 : x
  2. Step 2: Convert to fraction form
    162,617.01/243,747.57 = 83,735.97/x
  3. Step 3: Cross multiply
    162,617.01x = 243,747.57 × 83,735.97
  4. Step 4: Simplify right side
    162,617.01x = 20,410,439,209.09
  5. Step 5: Solve for x
    x = 20,410,439,209.09/162,617.01
  6. Step 6: Final answer
    x = 125,512.33

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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.