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Finding the Fourth Proportional to 352,815.84, 530,273.52 and 165,958.56

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Solution

The fourth proportional to 352,815.84, 530,273.52 and 165,958.56 is: 249,431.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,815.84 : 530,273.52 = 165,958.56 : x
  2. Step 2: Convert to fraction form
    352,815.84/530,273.52 = 165,958.56/x
  3. Step 3: Cross multiply
    352,815.84x = 530,273.52 × 165,958.56
  4. Step 4: Simplify right side
    352,815.84x = 88,003,429,785.33
  5. Step 5: Solve for x
    x = 88,003,429,785.33/352,815.84
  6. Step 6: Final answer
    x = 249,431.63

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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.