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Finding the Fourth Proportional to 83,790.70, 125,615.23 and 36,369.93

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Solution

The fourth proportional to 83,790.70, 125,615.23 and 36,369.93 is: 54,524.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,790.70 : 125,615.23 = 36,369.93 : x
  2. Step 2: Convert to fraction form
    83,790.70/125,615.23 = 36,369.93/x
  3. Step 3: Cross multiply
    83,790.70x = 125,615.23 × 36,369.93
  4. Step 4: Simplify right side
    83,790.70x = 4,568,617,122.03
  5. Step 5: Solve for x
    x = 4,568,617,122.03/83,790.70
  6. Step 6: Final answer
    x = 54,524.16

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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.