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Finding the Fourth Proportional to 119,818.40, 179,753.12 and 35,578.81

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Solution

The fourth proportional to 119,818.40, 179,753.12 and 35,578.81 is: 53,375.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,818.40 : 179,753.12 = 35,578.81 : x
  2. Step 2: Convert to fraction form
    119,818.40/179,753.12 = 35,578.81/x
  3. Step 3: Cross multiply
    119,818.40x = 179,753.12 × 35,578.81
  4. Step 4: Simplify right side
    119,818.40x = 6,395,401,026.73
  5. Step 5: Solve for x
    x = 6,395,401,026.73/119,818.40
  6. Step 6: Final answer
    x = 53,375.78

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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.