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Finding the Fourth Proportional to 75,084.62, 112,682.42 and 60,469.93

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Solution

The fourth proportional to 75,084.62, 112,682.42 and 60,469.93 is: 90,749.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,084.62 : 112,682.42 = 60,469.93 : x
  2. Step 2: Convert to fraction form
    75,084.62/112,682.42 = 60,469.93/x
  3. Step 3: Cross multiply
    75,084.62x = 112,682.42 × 60,469.93
  4. Step 4: Simplify right side
    75,084.62x = 6,813,897,183.87
  5. Step 5: Solve for x
    x = 6,813,897,183.87/75,084.62
  6. Step 6: Final answer
    x = 90,749.57

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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.