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Finding the Fourth Proportional to 333,171.15, 499,619.24 and 127,974.79

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Solution

The fourth proportional to 333,171.15, 499,619.24 and 127,974.79 is: 191,909.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,171.15 : 499,619.24 = 127,974.79 : x
  2. Step 2: Convert to fraction form
    333,171.15/499,619.24 = 127,974.79/x
  3. Step 3: Cross multiply
    333,171.15x = 499,619.24 × 127,974.79
  4. Step 4: Simplify right side
    333,171.15x = 63,938,667,318.96
  5. Step 5: Solve for x
    x = 63,938,667,318.96/333,171.15
  6. Step 6: Final answer
    x = 191,909.38

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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.