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Finding the Fourth Proportional to 159,340.44, 239,158.34 and 80,510.06

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Solution

The fourth proportional to 159,340.44, 239,158.34 and 80,510.06 is: 120,839.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,340.44 : 239,158.34 = 80,510.06 : x
  2. Step 2: Convert to fraction form
    159,340.44/239,158.34 = 80,510.06/x
  3. Step 3: Cross multiply
    159,340.44x = 239,158.34 × 80,510.06
  4. Step 4: Simplify right side
    159,340.44x = 19,254,652,302.90
  5. Step 5: Solve for x
    x = 19,254,652,302.90/159,340.44
  6. Step 6: Final answer
    x = 120,839.71

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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.