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Finding the Fourth Proportional to 179,665.20, 269,476.20 and 74,473.20

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Solution

The fourth proportional to 179,665.20, 269,476.20 and 74,473.20 is: 111,700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,665.20 : 269,476.20 = 74,473.20 : x
  2. Step 2: Convert to fraction form
    179,665.20/269,476.20 = 74,473.20/x
  3. Step 3: Cross multiply
    179,665.20x = 269,476.20 × 74,473.20
  4. Step 4: Simplify right side
    179,665.20x = 20,068,754,937.84
  5. Step 5: Solve for x
    x = 20,068,754,937.84/179,665.20
  6. Step 6: Final answer
    x = 111,700.85

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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.