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Finding the Fourth Proportional to 204,871.22, 307,235.76 and 71,748.54

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Solution

The fourth proportional to 204,871.22, 307,235.76 and 71,748.54 is: 107,597.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,871.22 : 307,235.76 = 71,748.54 : x
  2. Step 2: Convert to fraction form
    204,871.22/307,235.76 = 71,748.54/x
  3. Step 3: Cross multiply
    204,871.22x = 307,235.76 × 71,748.54
  4. Step 4: Simplify right side
    204,871.22x = 22,043,717,215.79
  5. Step 5: Solve for x
    x = 22,043,717,215.79/204,871.22
  6. Step 6: Final answer
    x = 107,597.92

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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.