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Finding the Fourth Proportional to 81,483.52, 122,260.39 and 44,069.93

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Solution

The fourth proportional to 81,483.52, 122,260.39 and 44,069.93 is: 66,123.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,483.52 : 122,260.39 = 44,069.93 : x
  2. Step 2: Convert to fraction form
    81,483.52/122,260.39 = 44,069.93/x
  3. Step 3: Cross multiply
    81,483.52x = 122,260.39 × 44,069.93
  4. Step 4: Simplify right side
    81,483.52x = 5,388,006,791.48
  5. Step 5: Solve for x
    x = 5,388,006,791.48/81,483.52
  6. Step 6: Final answer
    x = 66,123.88

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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.