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Finding the Fourth Proportional to 70,781.58, 106,237.98 and 35,745.84

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Solution

The fourth proportional to 70,781.58, 106,237.98 and 35,745.84 is: 53,651.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,781.58 : 106,237.98 = 35,745.84 : x
  2. Step 2: Convert to fraction form
    70,781.58/106,237.98 = 35,745.84/x
  3. Step 3: Cross multiply
    70,781.58x = 106,237.98 × 35,745.84
  4. Step 4: Simplify right side
    70,781.58x = 3,797,565,835.00
  5. Step 5: Solve for x
    x = 3,797,565,835.00/70,781.58
  6. Step 6: Final answer
    x = 53,651.89

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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.