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Finding the Fourth Proportional to 333,871.97, 500,803.59 and 81,151.73

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Solution

The fourth proportional to 333,871.97, 500,803.59 and 81,151.73 is: 121,726.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,871.97 : 500,803.59 = 81,151.73 : x
  2. Step 2: Convert to fraction form
    333,871.97/500,803.59 = 81,151.73/x
  3. Step 3: Cross multiply
    333,871.97x = 500,803.59 × 81,151.73
  4. Step 4: Simplify right side
    333,871.97x = 40,641,078,805.54
  5. Step 5: Solve for x
    x = 40,641,078,805.54/333,871.97
  6. Step 6: Final answer
    x = 121,726.54

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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.