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Finding the Fourth Proportional to 171,323.31, 236,199.65 and 140,583.81

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Solution

The fourth proportional to 171,323.31, 236,199.65 and 140,583.81 is: 193,819.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,323.31 : 236,199.65 = 140,583.81 : x
  2. Step 2: Convert to fraction form
    171,323.31/236,199.65 = 140,583.81/x
  3. Step 3: Cross multiply
    171,323.31x = 236,199.65 × 140,583.81
  4. Step 4: Simplify right side
    171,323.31x = 33,205,846,014.75
  5. Step 5: Solve for x
    x = 33,205,846,014.75/171,323.31
  6. Step 6: Final answer
    x = 193,819.78

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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.