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Finding the Fourth Proportional to 78,819.01, 108,772.62 and 44,832.38

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Solution

The fourth proportional to 78,819.01, 108,772.62 and 44,832.38 is: 61,870.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,819.01 : 108,772.62 = 44,832.38 : x
  2. Step 2: Convert to fraction form
    78,819.01/108,772.62 = 44,832.38/x
  3. Step 3: Cross multiply
    78,819.01x = 108,772.62 × 44,832.38
  4. Step 4: Simplify right side
    78,819.01x = 4,876,535,433.44
  5. Step 5: Solve for x
    x = 4,876,535,433.44/78,819.01
  6. Step 6: Final answer
    x = 61,870.04

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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.