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Finding the Fourth Proportional to 321,669.13, 482,363.52 and 108,397.30

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Solution

The fourth proportional to 321,669.13, 482,363.52 and 108,397.30 is: 162,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,669.13 : 482,363.52 = 108,397.30 : x
  2. Step 2: Convert to fraction form
    321,669.13/482,363.52 = 108,397.30/x
  3. Step 3: Cross multiply
    321,669.13x = 482,363.52 × 108,397.30
  4. Step 4: Simplify right side
    321,669.13x = 52,286,900,232.69
  5. Step 5: Solve for x
    x = 52,286,900,232.69/321,669.13
  6. Step 6: Final answer
    x = 162,548.70

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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.