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Finding the Fourth Proportional to 73,940.20, 110,910.30 and 73,284.10

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Solution

The fourth proportional to 73,940.20, 110,910.30 and 73,284.10 is: 109,926.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,940.20 : 110,910.30 = 73,284.10 : x
  2. Step 2: Convert to fraction form
    73,940.20/110,910.30 = 73,284.10/x
  3. Step 3: Cross multiply
    73,940.20x = 110,910.30 × 73,284.10
  4. Step 4: Simplify right side
    73,940.20x = 8,127,961,516.23
  5. Step 5: Solve for x
    x = 8,127,961,516.23/73,940.20
  6. Step 6: Final answer
    x = 109,926.15

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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.