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Finding the Fourth Proportional to 424,010.67, 636,012.77 and 108,467.07

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Solution

The fourth proportional to 424,010.67, 636,012.77 and 108,467.07 is: 162,699.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,010.67 : 636,012.77 = 108,467.07 : x
  2. Step 2: Convert to fraction form
    424,010.67/636,012.77 = 108,467.07/x
  3. Step 3: Cross multiply
    424,010.67x = 636,012.77 × 108,467.07
  4. Step 4: Simplify right side
    424,010.67x = 68,986,441,102.15
  5. Step 5: Solve for x
    x = 68,986,441,102.15/424,010.67
  6. Step 6: Final answer
    x = 162,699.78

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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.