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Finding the Fourth Proportional to 204,871.72, 307,236.51 and 71,749.04

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Solution

The fourth proportional to 204,871.72, 307,236.51 and 71,749.04 is: 107,598.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,871.72 : 307,236.51 = 71,749.04 : x
  2. Step 2: Convert to fraction form
    204,871.72/307,236.51 = 71,749.04/x
  3. Step 3: Cross multiply
    204,871.72x = 307,236.51 × 71,749.04
  4. Step 4: Simplify right side
    204,871.72x = 22,043,924,645.45
  5. Step 5: Solve for x
    x = 22,043,924,645.45/204,871.72
  6. Step 6: Final answer
    x = 107,598.67

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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.