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Finding the Fourth Proportional to 159,334.60, 238,713.90 and 92,720.20

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Solution

The fourth proportional to 159,334.60, 238,713.90 and 92,720.20 is: 138,912.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,334.60 : 238,713.90 = 92,720.20 : x
  2. Step 2: Convert to fraction form
    159,334.60/238,713.90 = 92,720.20/x
  3. Step 3: Cross multiply
    159,334.60x = 238,713.90 × 92,720.20
  4. Step 4: Simplify right side
    159,334.60x = 22,133,600,550.78
  5. Step 5: Solve for x
    x = 22,133,600,550.78/159,334.60
  6. Step 6: Final answer
    x = 138,912.71

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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.