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Finding the Fourth Proportional to 333,997.06, 500,996.60 and 81,277.59

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Solution

The fourth proportional to 333,997.06, 500,996.60 and 81,277.59 is: 121,916.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,997.06 : 500,996.60 = 81,277.59 : x
  2. Step 2: Convert to fraction form
    333,997.06/500,996.60 = 81,277.59/x
  3. Step 3: Cross multiply
    333,997.06x = 500,996.60 × 81,277.59
  4. Step 4: Simplify right side
    333,997.06x = 40,719,796,246.19
  5. Step 5: Solve for x
    x = 40,719,796,246.19/333,997.06
  6. Step 6: Final answer
    x = 121,916.63

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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.