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Finding the Fourth Proportional to 331,833.79, 497,752.67 and 82,515.79

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Solution

The fourth proportional to 331,833.79, 497,752.67 and 82,515.79 is: 123,774.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,833.79 : 497,752.67 = 82,515.79 : x
  2. Step 2: Convert to fraction form
    331,833.79/497,752.67 = 82,515.79/x
  3. Step 3: Cross multiply
    331,833.79x = 497,752.67 × 82,515.79
  4. Step 4: Simplify right side
    331,833.79x = 41,072,454,789.66
  5. Step 5: Solve for x
    x = 41,072,454,789.66/331,833.79
  6. Step 6: Final answer
    x = 123,774.18

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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.