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Finding the Fourth Proportional to 96,698.67, 144,907.80 and 68,673.61

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Solution

The fourth proportional to 96,698.67, 144,907.80 and 68,673.61 is: 102,910.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,698.67 : 144,907.80 = 68,673.61 : x
  2. Step 2: Convert to fraction form
    96,698.67/144,907.80 = 68,673.61/x
  3. Step 3: Cross multiply
    96,698.67x = 144,907.80 × 68,673.61
  4. Step 4: Simplify right side
    96,698.67x = 9,951,341,743.16
  5. Step 5: Solve for x
    x = 9,951,341,743.16/96,698.67
  6. Step 6: Final answer
    x = 102,910.84

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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.