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Finding the Fourth Proportional to 67,281.80, 100,908.30 and 29,841.80

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Solution

The fourth proportional to 67,281.80, 100,908.30 and 29,841.80 is: 44,756.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,281.80 : 100,908.30 = 29,841.80 : x
  2. Step 2: Convert to fraction form
    67,281.80/100,908.30 = 29,841.80/x
  3. Step 3: Cross multiply
    67,281.80x = 100,908.30 × 29,841.80
  4. Step 4: Simplify right side
    67,281.80x = 3,011,285,306.94
  5. Step 5: Solve for x
    x = 3,011,285,306.94/67,281.80
  6. Step 6: Final answer
    x = 44,756.31

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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.