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Finding the Fourth Proportional to 159,488.20, 239,232.30 and 70,914.70

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Solution

The fourth proportional to 159,488.20, 239,232.30 and 70,914.70 is: 106,372.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,488.20 : 239,232.30 = 70,914.70 : x
  2. Step 2: Convert to fraction form
    159,488.20/239,232.30 = 70,914.70/x
  3. Step 3: Cross multiply
    159,488.20x = 239,232.30 × 70,914.70
  4. Step 4: Simplify right side
    159,488.20x = 16,965,086,784.81
  5. Step 5: Solve for x
    x = 16,965,086,784.81/159,488.20
  6. Step 6: Final answer
    x = 106,372.05

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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.