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Finding the Fourth Proportional to 203,526.36, 305,072.01 and 108,698.04

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Solution

The fourth proportional to 203,526.36, 305,072.01 and 108,698.04 is: 162,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,526.36 : 305,072.01 = 108,698.04 : x
  2. Step 2: Convert to fraction form
    203,526.36/305,072.01 = 108,698.04/x
  3. Step 3: Cross multiply
    203,526.36x = 305,072.01 × 108,698.04
  4. Step 4: Simplify right side
    203,526.36x = 33,160,729,545.86
  5. Step 5: Solve for x
    x = 33,160,729,545.86/203,526.36
  6. Step 6: Final answer
    x = 162,930.88

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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.