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Finding the Fourth Proportional to 275,086.99, 412,631.90 and 125,222.47

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Solution

The fourth proportional to 275,086.99, 412,631.90 and 125,222.47 is: 187,834.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,086.99 : 412,631.90 = 125,222.47 : x
  2. Step 2: Convert to fraction form
    275,086.99/412,631.90 = 125,222.47/x
  3. Step 3: Cross multiply
    275,086.99x = 412,631.90 × 125,222.47
  4. Step 4: Simplify right side
    275,086.99x = 51,670,785,718.79
  5. Step 5: Solve for x
    x = 51,670,785,718.79/275,086.99
  6. Step 6: Final answer
    x = 187,834.35

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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.