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Finding the Fourth Proportional to 159,474.20, 239,211.30 and 70,900.70

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Solution

The fourth proportional to 159,474.20, 239,211.30 and 70,900.70 is: 106,351.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,474.20 : 239,211.30 = 70,900.70 : x
  2. Step 2: Convert to fraction form
    159,474.20/239,211.30 = 70,900.70/x
  3. Step 3: Cross multiply
    159,474.20x = 239,211.30 × 70,900.70
  4. Step 4: Simplify right side
    159,474.20x = 16,960,248,617.91
  5. Step 5: Solve for x
    x = 16,960,248,617.91/159,474.20
  6. Step 6: Final answer
    x = 106,351.05

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1.5x scale

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.