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Finding the Fourth Proportional to 68,860.20, 103,204.20 and 29,371.20

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Solution

The fourth proportional to 68,860.20, 103,204.20 and 29,371.20 is: 44,020.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,860.20 : 103,204.20 = 29,371.20 : x
  2. Step 2: Convert to fraction form
    68,860.20/103,204.20 = 29,371.20/x
  3. Step 3: Cross multiply
    68,860.20x = 103,204.20 × 29,371.20
  4. Step 4: Simplify right side
    68,860.20x = 3,031,231,199.04
  5. Step 5: Solve for x
    x = 3,031,231,199.04/68,860.20
  6. Step 6: Final answer
    x = 44,020.08

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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.