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Finding the Fourth Proportional to 106,479.97, 159,676.18 and 39,885.82

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Solution

The fourth proportional to 106,479.97, 159,676.18 and 39,885.82 is: 59,812.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,479.97 : 159,676.18 = 39,885.82 : x
  2. Step 2: Convert to fraction form
    106,479.97/159,676.18 = 39,885.82/x
  3. Step 3: Cross multiply
    106,479.97x = 159,676.18 × 39,885.82
  4. Step 4: Simplify right side
    106,479.97x = 6,368,814,874.86
  5. Step 5: Solve for x
    x = 6,368,814,874.86/106,479.97
  6. Step 6: Final answer
    x = 59,812.33

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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.