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Finding the Fourth Proportional to 123,859.20, 185,730.20 and 47,993.24

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Solution

The fourth proportional to 123,859.20, 185,730.20 and 47,993.24 is: 71,967.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,859.20 : 185,730.20 = 47,993.24 : x
  2. Step 2: Convert to fraction form
    123,859.20/185,730.20 = 47,993.24/x
  3. Step 3: Cross multiply
    123,859.20x = 185,730.20 × 47,993.24
  4. Step 4: Simplify right side
    123,859.20x = 8,913,794,063.85
  5. Step 5: Solve for x
    x = 8,913,794,063.85/123,859.20
  6. Step 6: Final answer
    x = 71,967.15

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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.