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Finding the Fourth Proportional to 239,792.72, 359,611.19 and 79,825.68

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Solution

The fourth proportional to 239,792.72, 359,611.19 and 79,825.68 is: 119,712.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,792.72 : 359,611.19 = 79,825.68 : x
  2. Step 2: Convert to fraction form
    239,792.72/359,611.19 = 79,825.68/x
  3. Step 3: Cross multiply
    239,792.72x = 359,611.19 × 79,825.68
  4. Step 4: Simplify right side
    239,792.72x = 28,706,207,976.92
  5. Step 5: Solve for x
    x = 28,706,207,976.92/239,792.72
  6. Step 6: Final answer
    x = 119,712.59

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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.