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Finding the Fourth Proportional to 73,996.20, 110,775.60 and 49,064.40

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Solution

The fourth proportional to 73,996.20, 110,775.60 and 49,064.40 is: 73,451.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,996.20 : 110,775.60 = 49,064.40 : x
  2. Step 2: Convert to fraction form
    73,996.20/110,775.60 = 49,064.40/x
  3. Step 3: Cross multiply
    73,996.20x = 110,775.60 × 49,064.40
  4. Step 4: Simplify right side
    73,996.20x = 5,435,138,348.64
  5. Step 5: Solve for x
    x = 5,435,138,348.64/73,996.20
  6. Step 6: Final answer
    x = 73,451.59

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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.