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Finding the Fourth Proportional to 225,072.80, 337,660.40 and 131,530.40

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Solution

The fourth proportional to 225,072.80, 337,660.40 and 131,530.40 is: 197,325.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,072.80 : 337,660.40 = 131,530.40 : x
  2. Step 2: Convert to fraction form
    225,072.80/337,660.40 = 131,530.40/x
  3. Step 3: Cross multiply
    225,072.80x = 337,660.40 × 131,530.40
  4. Step 4: Simplify right side
    225,072.80x = 44,412,607,476.16
  5. Step 5: Solve for x
    x = 44,412,607,476.16/225,072.80
  6. Step 6: Final answer
    x = 197,325.52

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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.