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Finding the Fourth Proportional to 96,469.60, 144,531.60 and 82,645.60

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Solution

The fourth proportional to 96,469.60, 144,531.60 and 82,645.60 is: 123,820.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,469.60 : 144,531.60 = 82,645.60 : x
  2. Step 2: Convert to fraction form
    96,469.60/144,531.60 = 82,645.60/x
  3. Step 3: Cross multiply
    96,469.60x = 144,531.60 × 82,645.60
  4. Step 4: Simplify right side
    96,469.60x = 11,944,900,800.96
  5. Step 5: Solve for x
    x = 11,944,900,800.96/96,469.60
  6. Step 6: Final answer
    x = 123,820.36

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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.