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Finding the Fourth Proportional to 131,885.01, 197,851.82 and 43,143.44

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Solution

The fourth proportional to 131,885.01, 197,851.82 and 43,143.44 is: 64,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,885.01 : 197,851.82 = 43,143.44 : x
  2. Step 2: Convert to fraction form
    131,885.01/197,851.82 = 43,143.44/x
  3. Step 3: Cross multiply
    131,885.01x = 197,851.82 × 43,143.44
  4. Step 4: Simplify right side
    131,885.01x = 8,536,006,920.08
  5. Step 5: Solve for x
    x = 8,536,006,920.08/131,885.01
  6. Step 6: Final answer
    x = 64,723.10

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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.