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Finding the Fourth Proportional to 51,337.80, 76,943.12 and 29,083.72

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Solution

The fourth proportional to 51,337.80, 76,943.12 and 29,083.72 is: 43,589.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,337.80 : 76,943.12 = 29,083.72 : x
  2. Step 2: Convert to fraction form
    51,337.80/76,943.12 = 29,083.72/x
  3. Step 3: Cross multiply
    51,337.80x = 76,943.12 × 29,083.72
  4. Step 4: Simplify right side
    51,337.80x = 2,237,792,158.01
  5. Step 5: Solve for x
    x = 2,237,792,158.01/51,337.80
  6. Step 6: Final answer
    x = 43,589.56

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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.