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Finding the Fourth Proportional to 119,998.40, 179,738.40 and 104,446.40

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Solution

The fourth proportional to 119,998.40, 179,738.40 and 104,446.40 is: 156,443.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,998.40 : 179,738.40 = 104,446.40 : x
  2. Step 2: Convert to fraction form
    119,998.40/179,738.40 = 104,446.40/x
  3. Step 3: Cross multiply
    119,998.40x = 179,738.40 × 104,446.40
  4. Step 4: Simplify right side
    119,998.40x = 18,773,028,821.76
  5. Step 5: Solve for x
    x = 18,773,028,821.76/119,998.40
  6. Step 6: Final answer
    x = 156,443.99

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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.