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Finding the Fourth Proportional to 225,983.88, 339,030.63 and 68,202.90

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Solution

The fourth proportional to 225,983.88, 339,030.63 and 68,202.90 is: 102,320.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,983.88 : 339,030.63 = 68,202.90 : x
  2. Step 2: Convert to fraction form
    225,983.88/339,030.63 = 68,202.90/x
  3. Step 3: Cross multiply
    225,983.88x = 339,030.63 × 68,202.90
  4. Step 4: Simplify right side
    225,983.88x = 23,122,872,154.83
  5. Step 5: Solve for x
    x = 23,122,872,154.83/225,983.88
  6. Step 6: Final answer
    x = 102,320.89

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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.