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Finding the Fourth Proportional to 135,654.30, 187,212.52 and 75,230.73

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Solution

The fourth proportional to 135,654.30, 187,212.52 and 75,230.73 is: 103,823.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,654.30 : 187,212.52 = 75,230.73 : x
  2. Step 2: Convert to fraction form
    135,654.30/187,212.52 = 75,230.73/x
  3. Step 3: Cross multiply
    135,654.30x = 187,212.52 × 75,230.73
  4. Step 4: Simplify right side
    135,654.30x = 14,084,134,544.74
  5. Step 5: Solve for x
    x = 14,084,134,544.74/135,654.30
  6. Step 6: Final answer
    x = 103,823.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.