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Finding the Fourth Proportional to 234,082.21, 323,031.15 and 126,649.88

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Solution

The fourth proportional to 234,082.21, 323,031.15 and 126,649.88 is: 174,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,082.21 : 323,031.15 = 126,649.88 : x
  2. Step 2: Convert to fraction form
    234,082.21/323,031.15 = 126,649.88/x
  3. Step 3: Cross multiply
    234,082.21x = 323,031.15 × 126,649.88
  4. Step 4: Simplify right side
    234,082.21x = 40,911,857,191.34
  5. Step 5: Solve for x
    x = 40,911,857,191.34/234,082.21
  6. Step 6: Final answer
    x = 174,775.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.