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Finding the Fourth Proportional to 225,960.12, 338,931.66 and 68,184.36

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Solution

The fourth proportional to 225,960.12, 338,931.66 and 68,184.36 is: 102,273.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,960.12 : 338,931.66 = 68,184.36 : x
  2. Step 2: Convert to fraction form
    225,960.12/338,931.66 = 68,184.36/x
  3. Step 3: Cross multiply
    225,960.12x = 338,931.66 × 68,184.36
  4. Step 4: Simplify right side
    225,960.12x = 23,109,838,320.84
  5. Step 5: Solve for x
    x = 23,109,838,320.84/225,960.12
  6. Step 6: Final answer
    x = 102,273.97

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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.