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Finding the Fourth Proportional to 179,228.32, 268,676.32 and 79,335.28

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Solution

The fourth proportional to 179,228.32, 268,676.32 and 79,335.28 is: 118,929.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,228.32 : 268,676.32 = 79,335.28 : x
  2. Step 2: Convert to fraction form
    179,228.32/268,676.32 = 79,335.28/x
  3. Step 3: Cross multiply
    179,228.32x = 268,676.32 × 79,335.28
  4. Step 4: Simplify right side
    179,228.32x = 21,315,511,076.57
  5. Step 5: Solve for x
    x = 21,315,511,076.57/179,228.32
  6. Step 6: Final answer
    x = 118,929.37

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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.