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Finding the Fourth Proportional to 92,401.20, 138,601.80 and 50,410.80

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Solution

The fourth proportional to 92,401.20, 138,601.80 and 50,410.80 is: 75,616.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,401.20 : 138,601.80 = 50,410.80 : x
  2. Step 2: Convert to fraction form
    92,401.20/138,601.80 = 50,410.80/x
  3. Step 3: Cross multiply
    92,401.20x = 138,601.80 × 50,410.80
  4. Step 4: Simplify right side
    92,401.20x = 6,987,027,619.44
  5. Step 5: Solve for x
    x = 6,987,027,619.44/92,401.20
  6. Step 6: Final answer
    x = 75,616.20

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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.