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Finding the Fourth Proportional to 333,796.19, 500,687.21 and 81,077.85

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Solution

The fourth proportional to 333,796.19, 500,687.21 and 81,077.85 is: 121,615.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,796.19 : 500,687.21 = 81,077.85 : x
  2. Step 2: Convert to fraction form
    333,796.19/500,687.21 = 81,077.85/x
  3. Step 3: Cross multiply
    333,796.19x = 500,687.21 × 81,077.85
  4. Step 4: Simplify right side
    333,796.19x = 40,594,642,711.99
  5. Step 5: Solve for x
    x = 40,594,642,711.99/333,796.19
  6. Step 6: Final answer
    x = 121,615.06

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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.