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Finding the Fourth Proportional to 70,899.82, 106,249.43 and 39,323.77

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Solution

The fourth proportional to 70,899.82, 106,249.43 and 39,323.77 is: 58,930.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,899.82 : 106,249.43 = 39,323.77 : x
  2. Step 2: Convert to fraction form
    70,899.82/106,249.43 = 39,323.77/x
  3. Step 3: Cross multiply
    70,899.82x = 106,249.43 × 39,323.77
  4. Step 4: Simplify right side
    70,899.82x = 4,178,127,951.33
  5. Step 5: Solve for x
    x = 4,178,127,951.33/70,899.82
  6. Step 6: Final answer
    x = 58,930.02

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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.