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Finding the Fourth Proportional to 73,493.80, 110,240.70 and 51,260.20

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Solution

The fourth proportional to 73,493.80, 110,240.70 and 51,260.20 is: 76,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,493.80 : 110,240.70 = 51,260.20 : x
  2. Step 2: Convert to fraction form
    73,493.80/110,240.70 = 51,260.20/x
  3. Step 3: Cross multiply
    73,493.80x = 110,240.70 × 51,260.20
  4. Step 4: Simplify right side
    73,493.80x = 5,650,960,330.14
  5. Step 5: Solve for x
    x = 5,650,960,330.14/73,493.80
  6. Step 6: Final answer
    x = 76,890.30

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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.