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Finding the Fourth Proportional to 119,859.60, 179,789.52 and 40,974.48

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Solution

The fourth proportional to 119,859.60, 179,789.52 and 40,974.48 is: 61,461.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,859.60 : 179,789.52 = 40,974.48 : x
  2. Step 2: Convert to fraction form
    119,859.60/179,789.52 = 40,974.48/x
  3. Step 3: Cross multiply
    119,859.60x = 179,789.52 × 40,974.48
  4. Step 4: Simplify right side
    119,859.60x = 7,366,782,091.45
  5. Step 5: Solve for x
    x = 7,366,782,091.45/119,859.60
  6. Step 6: Final answer
    x = 61,461.76

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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.