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Finding the Fourth Proportional to 73,493.80, 110,240.70 and 71,306.80

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Solution

The fourth proportional to 73,493.80, 110,240.70 and 71,306.80 is: 106,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,493.80 : 110,240.70 = 71,306.80 : x
  2. Step 2: Convert to fraction form
    73,493.80/110,240.70 = 71,306.80/x
  3. Step 3: Cross multiply
    73,493.80x = 110,240.70 × 71,306.80
  4. Step 4: Simplify right side
    73,493.80x = 7,860,911,546.76
  5. Step 5: Solve for x
    x = 7,860,911,546.76/73,493.80
  6. Step 6: Final answer
    x = 106,960.20

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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.