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Finding the Fourth Proportional to 68,600.20, 102,873.12 and 29,158.60

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Solution

The fourth proportional to 68,600.20, 102,873.12 and 29,158.60 is: 43,726.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,600.20 : 102,873.12 = 29,158.60 : x
  2. Step 2: Convert to fraction form
    68,600.20/102,873.12 = 29,158.60/x
  3. Step 3: Cross multiply
    68,600.20x = 102,873.12 × 29,158.60
  4. Step 4: Simplify right side
    68,600.20x = 2,999,636,156.83
  5. Step 5: Solve for x
    x = 2,999,636,156.83/68,600.20
  6. Step 6: Final answer
    x = 43,726.35

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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.