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Finding the Fourth Proportional to 81,951.52, 122,849.52 and 29,333.92

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Solution

The fourth proportional to 81,951.52, 122,849.52 and 29,333.92 is: 43,973.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,951.52 : 122,849.52 = 29,333.92 : x
  2. Step 2: Convert to fraction form
    81,951.52/122,849.52 = 29,333.92/x
  3. Step 3: Cross multiply
    81,951.52x = 122,849.52 × 29,333.92
  4. Step 4: Simplify right side
    81,951.52x = 3,603,657,991.72
  5. Step 5: Solve for x
    x = 3,603,657,991.72/81,951.52
  6. Step 6: Final answer
    x = 43,973.05

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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.