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Finding the Fourth Proportional to 68,908.20, 103,406.04 and 29,498.46

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Solution

The fourth proportional to 68,908.20, 103,406.04 and 29,498.46 is: 44,266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,908.20 : 103,406.04 = 29,498.46 : x
  2. Step 2: Convert to fraction form
    68,908.20/103,406.04 = 29,498.46/x
  3. Step 3: Cross multiply
    68,908.20x = 103,406.04 × 29,498.46
  4. Step 4: Simplify right side
    68,908.20x = 3,050,318,934.70
  5. Step 5: Solve for x
    x = 3,050,318,934.70/68,908.20
  6. Step 6: Final answer
    x = 44,266.41

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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.