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Finding the Fourth Proportional to 48,729.78, 73,192.95 and 29,046.78

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Solution

The fourth proportional to 48,729.78, 73,192.95 and 29,046.78 is: 43,628.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,729.78 : 73,192.95 = 29,046.78 : x
  2. Step 2: Convert to fraction form
    48,729.78/73,192.95 = 29,046.78/x
  3. Step 3: Cross multiply
    48,729.78x = 73,192.95 × 29,046.78
  4. Step 4: Simplify right side
    48,729.78x = 2,126,019,516.20
  5. Step 5: Solve for x
    x = 2,126,019,516.20/48,729.78
  6. Step 6: Final answer
    x = 43,628.75

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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.