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Finding the Fourth Proportional to 423,321.39, 635,176.49 and 183,508.47

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Solution

The fourth proportional to 423,321.39, 635,176.49 and 183,508.47 is: 275,346.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,321.39 : 635,176.49 = 183,508.47 : x
  2. Step 2: Convert to fraction form
    423,321.39/635,176.49 = 183,508.47/x
  3. Step 3: Cross multiply
    423,321.39x = 635,176.49 × 183,508.47
  4. Step 4: Simplify right side
    423,321.39x = 116,560,264,942.33
  5. Step 5: Solve for x
    x = 116,560,264,942.33/423,321.39
  6. Step 6: Final answer
    x = 275,346.98

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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.