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Finding the Fourth Proportional to 225,913.38, 338,924.76 and 68,132.28

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Solution

The fourth proportional to 225,913.38, 338,924.76 and 68,132.28 is: 102,214.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,913.38 : 338,924.76 = 68,132.28 : x
  2. Step 2: Convert to fraction form
    225,913.38/338,924.76 = 68,132.28/x
  3. Step 3: Cross multiply
    225,913.38x = 338,924.76 × 68,132.28
  4. Step 4: Simplify right side
    225,913.38x = 23,091,716,647.25
  5. Step 5: Solve for x
    x = 23,091,716,647.25/225,913.38
  6. Step 6: Final answer
    x = 102,214.91

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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.