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Finding the Fourth Proportional to 73,893.80, 110,804.38 and 42,299.08

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Solution

The fourth proportional to 73,893.80, 110,804.38 and 42,299.08 is: 63,427.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,893.80 : 110,804.38 = 42,299.08 : x
  2. Step 2: Convert to fraction form
    73,893.80/110,804.38 = 42,299.08/x
  3. Step 3: Cross multiply
    73,893.80x = 110,804.38 × 42,299.08
  4. Step 4: Simplify right side
    73,893.80x = 4,686,923,333.97
  5. Step 5: Solve for x
    x = 4,686,923,333.97/73,893.80
  6. Step 6: Final answer
    x = 63,427.83

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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.