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Finding the Fourth Proportional to 396,690.68, 595,031.90 and 97,172.82

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Solution

The fourth proportional to 396,690.68, 595,031.90 and 97,172.82 is: 145,758.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,690.68 : 595,031.90 = 97,172.82 : x
  2. Step 2: Convert to fraction form
    396,690.68/595,031.90 = 97,172.82/x
  3. Step 3: Cross multiply
    396,690.68x = 595,031.90 × 97,172.82
  4. Step 4: Simplify right side
    396,690.68x = 57,820,927,227.09
  5. Step 5: Solve for x
    x = 57,820,927,227.09/396,690.68
  6. Step 6: Final answer
    x = 145,758.22

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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.