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Finding the Fourth Proportional to 269,541.40, 404,336.40 and 111,737.20

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Solution

The fourth proportional to 269,541.40, 404,336.40 and 111,737.20 is: 167,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,541.40 : 404,336.40 = 111,737.20 : x
  2. Step 2: Convert to fraction form
    269,541.40/404,336.40 = 111,737.20/x
  3. Step 3: Cross multiply
    269,541.40x = 404,336.40 × 111,737.20
  4. Step 4: Simplify right side
    269,541.40x = 45,179,417,194.08
  5. Step 5: Solve for x
    x = 45,179,417,194.08/269,541.40
  6. Step 6: Final answer
    x = 167,615.87

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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.