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Finding the Fourth Proportional to 481,496.58, 722,248.47 and 126,509.94

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Solution

The fourth proportional to 481,496.58, 722,248.47 and 126,509.94 is: 189,765.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,496.58 : 722,248.47 = 126,509.94 : x
  2. Step 2: Convert to fraction form
    481,496.58/722,248.47 = 126,509.94/x
  3. Step 3: Cross multiply
    481,496.58x = 722,248.47 × 126,509.94
  4. Step 4: Simplify right side
    481,496.58x = 91,371,610,604.79
  5. Step 5: Solve for x
    x = 91,371,610,604.79/481,496.58
  6. Step 6: Final answer
    x = 189,765.86

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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.