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Finding the Fourth Proportional to 172,903.83, 238,625.63 and 101,343.97

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Solution

The fourth proportional to 172,903.83, 238,625.63 and 101,343.97 is: 139,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,903.83 : 238,625.63 = 101,343.97 : x
  2. Step 2: Convert to fraction form
    172,903.83/238,625.63 = 101,343.97/x
  3. Step 3: Cross multiply
    172,903.83x = 238,625.63 × 101,343.97
  4. Step 4: Simplify right side
    172,903.83x = 24,183,268,687.95
  5. Step 5: Solve for x
    x = 24,183,268,687.95/172,903.83
  6. Step 6: Final answer
    x = 139,865.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.