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Finding the Fourth Proportional to 169,800.78, 254,752.11 and 68,546.73

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Solution

The fourth proportional to 169,800.78, 254,752.11 and 68,546.73 is: 102,840.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,800.78 : 254,752.11 = 68,546.73 : x
  2. Step 2: Convert to fraction form
    169,800.78/254,752.11 = 68,546.73/x
  3. Step 3: Cross multiply
    169,800.78x = 254,752.11 × 68,546.73
  4. Step 4: Simplify right side
    169,800.78x = 17,462,424,101.10
  5. Step 5: Solve for x
    x = 17,462,424,101.10/169,800.78
  6. Step 6: Final answer
    x = 102,840.66

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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.