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Finding the Fourth Proportional to 45,807.48, 68,731.88 and 29,163.20

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Solution

The fourth proportional to 45,807.48, 68,731.88 and 29,163.20 is: 43,757.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,807.48 : 68,731.88 = 29,163.20 : x
  2. Step 2: Convert to fraction form
    45,807.48/68,731.88 = 29,163.20/x
  3. Step 3: Cross multiply
    45,807.48x = 68,731.88 × 29,163.20
  4. Step 4: Simplify right side
    45,807.48x = 2,004,441,073.34
  5. Step 5: Solve for x
    x = 2,004,441,073.34/45,807.48
  6. Step 6: Final answer
    x = 43,757.94

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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.