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Finding the Fourth Proportional to 333,721.50, 500,576.94 and 81,004.08

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Solution

The fourth proportional to 333,721.50, 500,576.94 and 81,004.08 is: 121,504.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,721.50 : 500,576.94 = 81,004.08 : x
  2. Step 2: Convert to fraction form
    333,721.50/500,576.94 = 81,004.08/x
  3. Step 3: Cross multiply
    333,721.50x = 500,576.94 × 81,004.08
  4. Step 4: Simplify right side
    333,721.50x = 40,548,774,493.92
  5. Step 5: Solve for x
    x = 40,548,774,493.92/333,721.50
  6. Step 6: Final answer
    x = 121,504.83

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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.