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Finding the Fourth Proportional to 443,540.93, 665,311.32 and 106,581.58

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Solution

The fourth proportional to 443,540.93, 665,311.32 and 106,581.58 is: 159,872.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,540.93 : 665,311.32 = 106,581.58 : x
  2. Step 2: Convert to fraction form
    443,540.93/665,311.32 = 106,581.58/x
  3. Step 3: Cross multiply
    443,540.93x = 665,311.32 × 106,581.58
  4. Step 4: Simplify right side
    443,540.93x = 70,909,929,955.73
  5. Step 5: Solve for x
    x = 70,909,929,955.73/443,540.93
  6. Step 6: Final answer
    x = 159,872.35

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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.