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Finding the Fourth Proportional to 172,673.37, 259,010.46 and 67,418.53

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Solution

The fourth proportional to 172,673.37, 259,010.46 and 67,418.53 is: 101,127.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,673.37 : 259,010.46 = 67,418.53 : x
  2. Step 2: Convert to fraction form
    172,673.37/259,010.46 = 67,418.53/x
  3. Step 3: Cross multiply
    172,673.37x = 259,010.46 × 67,418.53
  4. Step 4: Simplify right side
    172,673.37x = 17,462,103,820.30
  5. Step 5: Solve for x
    x = 17,462,103,820.30/172,673.37
  6. Step 6: Final answer
    x = 101,127.95

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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.