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Finding the Fourth Proportional to 225,400.62, 338,133.88 and 67,641.52

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Solution

The fourth proportional to 225,400.62, 338,133.88 and 67,641.52 is: 101,472.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,400.62 : 338,133.88 = 67,641.52 : x
  2. Step 2: Convert to fraction form
    225,400.62/338,133.88 = 67,641.52/x
  3. Step 3: Cross multiply
    225,400.62x = 338,133.88 × 67,641.52
  4. Step 4: Simplify right side
    225,400.62x = 22,871,889,606.70
  5. Step 5: Solve for x
    x = 22,871,889,606.70/225,400.62
  6. Step 6: Final answer
    x = 101,472.17

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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.