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Finding the Fourth Proportional to 78,873.96, 108,855.61 and 44,890.71

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Solution

The fourth proportional to 78,873.96, 108,855.61 and 44,890.71 is: 61,954.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,873.96 : 108,855.61 = 44,890.71 : x
  2. Step 2: Convert to fraction form
    78,873.96/108,855.61 = 44,890.71/x
  3. Step 3: Cross multiply
    78,873.96x = 108,855.61 × 44,890.71
  4. Step 4: Simplify right side
    78,873.96x = 4,886,605,620.38
  5. Step 5: Solve for x
    x = 4,886,605,620.38/78,873.96
  6. Step 6: Final answer
    x = 61,954.61

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Why These Related Problems?

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