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Finding the Fourth Proportional to 319,624.60, 479,099.88 and 106,335.54

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Solution

The fourth proportional to 319,624.60, 479,099.88 and 106,335.54 is: 159,391.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,624.60 : 479,099.88 = 106,335.54 : x
  2. Step 2: Convert to fraction form
    319,624.60/479,099.88 = 106,335.54/x
  3. Step 3: Cross multiply
    319,624.60x = 479,099.88 × 106,335.54
  4. Step 4: Simplify right side
    319,624.60x = 50,945,344,453.74
  5. Step 5: Solve for x
    x = 50,945,344,453.74/319,624.60
  6. Step 6: Final answer
    x = 159,391.19

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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.