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Finding the Fourth Proportional to 179,384, 269,039.28 and 67,043.48

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Solution

The fourth proportional to 179,384, 269,039.28 and 67,043.48 is: 100,551.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,384 : 269,039.28 = 67,043.48 : x
  2. Step 2: Convert to fraction form
    179,384/269,039.28 = 67,043.48/x
  3. Step 3: Cross multiply
    179,384x = 269,039.28 × 67,043.48
  4. Step 4: Simplify right side
    179,384x = 18,037,329,587.89
  5. Step 5: Solve for x
    x = 18,037,329,587.89/179,384
  6. Step 6: Final answer
    x = 100,551.50

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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.