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Finding the Fourth Proportional to 159,120.80, 238,675.80 and 40,793.30

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Solution

The fourth proportional to 159,120.80, 238,675.80 and 40,793.30 is: 61,188.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,120.80 : 238,675.80 = 40,793.30 : x
  2. Step 2: Convert to fraction form
    159,120.80/238,675.80 = 40,793.30/x
  3. Step 3: Cross multiply
    159,120.80x = 238,675.80 × 40,793.30
  4. Step 4: Simplify right side
    159,120.80x = 9,736,373,512.14
  5. Step 5: Solve for x
    x = 9,736,373,512.14/159,120.80
  6. Step 6: Final answer
    x = 61,188.57

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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.