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Finding the Fourth Proportional to 179,414.40, 269,006.40 and 74,275.20

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Solution

The fourth proportional to 179,414.40, 269,006.40 and 74,275.20 is: 111,365.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,414.40 : 269,006.40 = 74,275.20 : x
  2. Step 2: Convert to fraction form
    179,414.40/269,006.40 = 74,275.20/x
  3. Step 3: Cross multiply
    179,414.40x = 269,006.40 × 74,275.20
  4. Step 4: Simplify right side
    179,414.40x = 19,980,504,161.28
  5. Step 5: Solve for x
    x = 19,980,504,161.28/179,414.40
  6. Step 6: Final answer
    x = 111,365.11

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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.