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Finding the Fourth Proportional to 119,957.64, 179,961.82 and 45,078.44

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Solution

The fourth proportional to 119,957.64, 179,961.82 and 45,078.44 is: 67,627.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,957.64 : 179,961.82 = 45,078.44 : x
  2. Step 2: Convert to fraction form
    119,957.64/179,961.82 = 45,078.44/x
  3. Step 3: Cross multiply
    119,957.64x = 179,961.82 × 45,078.44
  4. Step 4: Simplify right side
    119,957.64x = 8,112,398,105.16
  5. Step 5: Solve for x
    x = 8,112,398,105.16/119,957.64
  6. Step 6: Final answer
    x = 67,627.19

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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.