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Finding the Fourth Proportional to 147,238.92, 220,858.47 and 47,399.04

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Solution

The fourth proportional to 147,238.92, 220,858.47 and 47,399.04 is: 71,098.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,238.92 : 220,858.47 = 47,399.04 : x
  2. Step 2: Convert to fraction form
    147,238.92/220,858.47 = 47,399.04/x
  3. Step 3: Cross multiply
    147,238.92x = 220,858.47 × 47,399.04
  4. Step 4: Simplify right side
    147,238.92x = 10,468,479,453.87
  5. Step 5: Solve for x
    x = 10,468,479,453.87/147,238.92
  6. Step 6: Final answer
    x = 71,098.59

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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.