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Finding the Fourth Proportional to 204,873.70, 307,310.55 and 126,032.35

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Solution

The fourth proportional to 204,873.70, 307,310.55 and 126,032.35 is: 189,048.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,873.70 : 307,310.55 = 126,032.35 : x
  2. Step 2: Convert to fraction form
    204,873.70/307,310.55 = 126,032.35/x
  3. Step 3: Cross multiply
    204,873.70x = 307,310.55 × 126,032.35
  4. Step 4: Simplify right side
    204,873.70x = 38,731,070,796.29
  5. Step 5: Solve for x
    x = 38,731,070,796.29/204,873.70
  6. Step 6: Final answer
    x = 189,048.53

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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.