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Finding the Fourth Proportional to 179,984.64, 269,772.12 and 79,994.64

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Solution

The fourth proportional to 179,984.64, 269,772.12 and 79,994.64 is: 119,900.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,984.64 : 269,772.12 = 79,994.64 : x
  2. Step 2: Convert to fraction form
    179,984.64/269,772.12 = 79,994.64/x
  3. Step 3: Cross multiply
    179,984.64x = 269,772.12 × 79,994.64
  4. Step 4: Simplify right side
    179,984.64x = 21,580,323,621.44
  5. Step 5: Solve for x
    x = 21,580,323,621.44/179,984.64
  6. Step 6: Final answer
    x = 119,900.92

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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.