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Finding the Fourth Proportional to 159,470.20, 239,205.30 and 106,593.40

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Solution

The fourth proportional to 159,470.20, 239,205.30 and 106,593.40 is: 159,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,470.20 : 239,205.30 = 106,593.40 : x
  2. Step 2: Convert to fraction form
    159,470.20/239,205.30 = 106,593.40/x
  3. Step 3: Cross multiply
    159,470.20x = 239,205.30 × 106,593.40
  4. Step 4: Simplify right side
    159,470.20x = 25,497,706,225.02
  5. Step 5: Solve for x
    x = 25,497,706,225.02/159,470.20
  6. Step 6: Final answer
    x = 159,890.10

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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.