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Finding the Fourth Proportional to 119,983.60, 179,629.80 and 73,327.60

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Solution

The fourth proportional to 119,983.60, 179,629.80 and 73,327.60 is: 109,780.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,983.60 : 179,629.80 = 73,327.60 : x
  2. Step 2: Convert to fraction form
    119,983.60/179,629.80 = 73,327.60/x
  3. Step 3: Cross multiply
    119,983.60x = 179,629.80 × 73,327.60
  4. Step 4: Simplify right side
    119,983.60x = 13,171,822,122.48
  5. Step 5: Solve for x
    x = 13,171,822,122.48/119,983.60
  6. Step 6: Final answer
    x = 109,780.19

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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.