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Finding the Fourth Proportional to 159,622.52, 239,468.81 and 47,311.56

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Solution

The fourth proportional to 159,622.52, 239,468.81 and 47,311.56 is: 70,977.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,622.52 : 239,468.81 = 47,311.56 : x
  2. Step 2: Convert to fraction form
    159,622.52/239,468.81 = 47,311.56/x
  3. Step 3: Cross multiply
    159,622.52x = 239,468.81 × 47,311.56
  4. Step 4: Simplify right side
    159,622.52x = 11,329,642,735.89
  5. Step 5: Solve for x
    x = 11,329,642,735.89/159,622.52
  6. Step 6: Final answer
    x = 70,977.72

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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.