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Finding the Fourth Proportional to 67,259.90, 100,840.64 and 22,874.73

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Solution

The fourth proportional to 67,259.90, 100,840.64 and 22,874.73 is: 34,295.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,259.90 : 100,840.64 = 22,874.73 : x
  2. Step 2: Convert to fraction form
    67,259.90/100,840.64 = 22,874.73/x
  3. Step 3: Cross multiply
    67,259.90x = 100,840.64 × 22,874.73
  4. Step 4: Simplify right side
    67,259.90x = 2,306,702,298.65
  5. Step 5: Solve for x
    x = 2,306,702,298.65/67,259.90
  6. Step 6: Final answer
    x = 34,295.36

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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.