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Finding the Fourth Proportional to 322,172.66, 483,073.77 and 132,763.76

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Solution

The fourth proportional to 322,172.66, 483,073.77 and 132,763.76 is: 199,069.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,172.66 : 483,073.77 = 132,763.76 : x
  2. Step 2: Convert to fraction form
    322,172.66/483,073.77 = 132,763.76/x
  3. Step 3: Cross multiply
    322,172.66x = 483,073.77 × 132,763.76
  4. Step 4: Simplify right side
    322,172.66x = 64,134,690,062.58
  5. Step 5: Solve for x
    x = 64,134,690,062.58/322,172.66
  6. Step 6: Final answer
    x = 199,069.31

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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.