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Finding the Fourth Proportional to 92,216.20, 138,324.30 and 56,786.80

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Solution

The fourth proportional to 92,216.20, 138,324.30 and 56,786.80 is: 85,180.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,216.20 : 138,324.30 = 56,786.80 : x
  2. Step 2: Convert to fraction form
    92,216.20/138,324.30 = 56,786.80/x
  3. Step 3: Cross multiply
    92,216.20x = 138,324.30 × 56,786.80
  4. Step 4: Simplify right side
    92,216.20x = 7,854,994,359.24
  5. Step 5: Solve for x
    x = 7,854,994,359.24/92,216.20
  6. Step 6: Final answer
    x = 85,180.20

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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.