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Finding the Fourth Proportional to 119,797.46, 179,712.39 and 40,890.50

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Solution

The fourth proportional to 119,797.46, 179,712.39 and 40,890.50 is: 61,341.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,797.46 : 179,712.39 = 40,890.50 : x
  2. Step 2: Convert to fraction form
    119,797.46/179,712.39 = 40,890.50/x
  3. Step 3: Cross multiply
    119,797.46x = 179,712.39 × 40,890.50
  4. Step 4: Simplify right side
    119,797.46x = 7,348,528,584.73
  5. Step 5: Solve for x
    x = 7,348,528,584.73/119,797.46
  6. Step 6: Final answer
    x = 61,341.27

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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.