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Finding the Fourth Proportional to 70,800, 106,192.64 and 44,426.56

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Solution

The fourth proportional to 70,800, 106,192.64 and 44,426.56 is: 66,635.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,800 : 106,192.64 = 44,426.56 : x
  2. Step 2: Convert to fraction form
    70,800/106,192.64 = 44,426.56/x
  3. Step 3: Cross multiply
    70,800x = 106,192.64 × 44,426.56
  4. Step 4: Simplify right side
    70,800x = 4,717,773,692.52
  5. Step 5: Solve for x
    x = 4,717,773,692.52/70,800
  6. Step 6: Final answer
    x = 66,635.22

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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.