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Finding the Fourth Proportional to 321,562.13, 482,265.28 and 108,274.95

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Solution

The fourth proportional to 321,562.13, 482,265.28 and 108,274.95 is: 162,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,562.13 : 482,265.28 = 108,274.95 : x
  2. Step 2: Convert to fraction form
    321,562.13/482,265.28 = 108,274.95/x
  3. Step 3: Cross multiply
    321,562.13x = 482,265.28 × 108,274.95
  4. Step 4: Simplify right side
    321,562.13x = 52,217,250,418.19
  5. Step 5: Solve for x
    x = 52,217,250,418.19/321,562.13
  6. Step 6: Final answer
    x = 162,386.20

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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.