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Finding the Fourth Proportional to 322,335.05, 483,335.71 and 144,689.09

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Solution

The fourth proportional to 322,335.05, 483,335.71 and 144,689.09 is: 216,958.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,335.05 : 483,335.71 = 144,689.09 : x
  2. Step 2: Convert to fraction form
    322,335.05/483,335.71 = 144,689.09/x
  3. Step 3: Cross multiply
    322,335.05x = 483,335.71 × 144,689.09
  4. Step 4: Simplify right side
    322,335.05x = 69,933,401,266.00
  5. Step 5: Solve for x
    x = 69,933,401,266.00/322,335.05
  6. Step 6: Final answer
    x = 216,958.73

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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.