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Finding the Fourth Proportional to 333,859.20, 500,639.49 and 239,971.02

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Solution

The fourth proportional to 333,859.20, 500,639.49 and 239,971.02 is: 359,849.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,859.20 : 500,639.49 = 239,971.02 : x
  2. Step 2: Convert to fraction form
    333,859.20/500,639.49 = 239,971.02/x
  3. Step 3: Cross multiply
    333,859.20x = 500,639.49 × 239,971.02
  4. Step 4: Simplify right side
    333,859.20x = 120,138,969,067.58
  5. Step 5: Solve for x
    x = 120,138,969,067.58/333,859.20
  6. Step 6: Final answer
    x = 359,849.21

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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.