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Finding the Fourth Proportional to 102,790.97, 154,081.44 and 58,323.80

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Solution

The fourth proportional to 102,790.97, 154,081.44 and 58,323.80 is: 87,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,790.97 : 154,081.44 = 58,323.80 : x
  2. Step 2: Convert to fraction form
    102,790.97/154,081.44 = 58,323.80/x
  3. Step 3: Cross multiply
    102,790.97x = 154,081.44 × 58,323.80
  4. Step 4: Simplify right side
    102,790.97x = 8,986,614,608.77
  5. Step 5: Solve for x
    x = 8,986,614,608.77/102,790.97
  6. Step 6: Final answer
    x = 87,426.11

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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.